Error:
TypeError: type numpy.ndarray doesn’t define __round__ method
How to Solve this Error:
Type error: type numpy.ndarray does not define uu round_uuu method
Solution
Type error: numpy.ndarray type data cannot be defined __round__ method method Change the round method to np.round!
For example
Add
xmlns:tools=”http://schemas.android.com/tools”
at the top of the manifest (or activity).
Background of the problem
When compiling Px4,
make px4_sitl_default gazebo
An error has been reported,
[0/535] Performing build step for 'sitl_gazebo'
[1/9] Generating /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/mb1240-xl-ez4/mb1240-xl-ez4-gen.sdf
FAILED: /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/mb1240-xl-ez4/mb1240-xl-ez4-gen.sdf
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/build_gazebo && /usr/bin/python3 /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/mb1240-xl-ez4/mb1240-xl-ez4.sdf.jinja /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo
Traceback (most recent call last):
File "/home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py", line 4, in <module>
import jinja2
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 82, in <module>
_patch_async()
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 78, in _patch_async
from jinja2.asyncsupport import patch_all
ModuleNotFoundError: No module named 'jinja2.asyncsupport'
[2/9] Generating /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/pixhawk/pixhawk-gen.sdf
FAILED: /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/pixhawk/pixhawk-gen.sdf
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/build_gazebo && /usr/bin/python3 /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/pixhawk/pixhawk.sdf.jinja /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo
Traceback (most recent call last):
File "/home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py", line 4, in <module>
import jinja2
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 82, in <module>
_patch_async()
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 78, in _patch_async
from jinja2.asyncsupport import patch_all
ModuleNotFoundError: No module named 'jinja2.asyncsupport'
[3/9] Generating /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/matrice_100/matrice_100-gen.sdf
FAILED: /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/matrice_100/matrice_100-gen.sdf
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/build_gazebo && /usr/bin/python3 /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/matrice_100/matrice_100.sdf.jinja /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo
Traceback (most recent call last):
File "/home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py", line 4, in <module>
import jinja2
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 82, in <module>
_patch_async()
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 78, in _patch_async
from jinja2.asyncsupport import patch_all
ModuleNotFoundError: No module named 'jinja2.asyncsupport'
[4/9] Generating /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/r200/r200-gen.sdf
FAILED: /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/r200/r200-gen.sdf
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/build_gazebo && /usr/bin/python3 /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/r200/r200.sdf.jinja /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo
Traceback (most recent call last):
File "/home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py", line 4, in <module>
import jinja2
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 82, in <module>
_patch_async()
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 78, in _patch_async
from jinja2.asyncsupport import patch_all
ModuleNotFoundError: No module named 'jinja2.asyncsupport'
[5/9] Generating /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/c920/c920-gen.sdf
FAILED: /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/c920/c920-gen.sdf
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/build_gazebo && /usr/bin/python3 /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/c920/c920.sdf.jinja /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo
Traceback (most recent call last):
File "/home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py", line 4, in <module>
import jinja2
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 82, in <module>
_patch_async()
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 78, in _patch_async
from jinja2.asyncsupport import patch_all
ModuleNotFoundError: No module named 'jinja2.asyncsupport'
[6/9] Generating /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/px4flow/px4flow-gen.sdf
FAILED: /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/px4flow/px4flow-gen.sdf
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/build_gazebo && /usr/bin/python3 /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/px4flow/px4flow.sdf.jinja /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo
Traceback (most recent call last):
File "/home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py", line 4, in <module>
import jinja2
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 82, in <module>
_patch_async()
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 78, in _patch_async
from jinja2.asyncsupport import patch_all
ModuleNotFoundError: No module named 'jinja2.asyncsupport'
[7/9] Generating /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/3DR_gps_mag/3DR_gps_mag-gen.sdf
FAILED: /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/3DR_gps_mag/3DR_gps_mag-gen.sdf
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/build_gazebo && /usr/bin/python3 /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/3DR_gps_mag/3DR_gps_mag.sdf.jinja /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo
Traceback (most recent call last):
File "/home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py", line 4, in <module>
import jinja2
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 82, in <module>
_patch_async()
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 78, in _patch_async
from jinja2.asyncsupport import patch_all
ModuleNotFoundError: No module named 'jinja2.asyncsupport'
[8/9] Generating /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/sf10a/sf10a-gen.sdf
FAILED: /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/sf10a/sf10a-gen.sdf
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/build_gazebo && /usr/bin/python3 /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/sf10a/sf10a.sdf.jinja /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo
Traceback (most recent call last):
File "/home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/jinja_gen.py", line 4, in <module>
import jinja2
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 82, in <module>
_patch_async()
File "/usr/lib/python2.7/dist-packages/jinja2/__init__.py", line 78, in _patch_async
from jinja2.asyncsupport import patch_all
ModuleNotFoundError: No module named 'jinja2.asyncsupport'
[9/9] Generating /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/iris/iris.sdf
FAILED: /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/iris/iris.sdf
cd /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo && rm -f /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/iris/iris.sdf && /usr/bin/python3 /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/scripts/xacro.py -o /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/rotors_description/urdf/iris_base.urdf /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/rotors_description/urdf/iris_base.xacro enable_mavlink_interface:=true enable_ground_truth:=false enable_wind:=false enable_logging:=false rotors_description_dir:=/home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/rotors_description send_vision_estimation:=true send_odometry:=false && gz sdf -p /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/rotors_description/urdf/iris_base.urdf >> /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/iris/iris.sdf && rm -f /home/zth/catkin_ws/Firmware/Tools/sitl_gazebo/models/rotors_description/urdf/iris_base.urdf
gz: symbol lookup error: /usr/lib/x86_64-linux-gnu/libgazebo_common.so.9: undefined symbol: _ZN8ignition10fuel_tools12ClientConfig12SetUserAgentERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE
ninja: build stopped: subcommand failed.
[2/535] Generating mixer_multirotor.generated.h
FAILED: src/lib/mixer/MultirotorMixer/mixer_multirotor.generated.h
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/src/lib/mixer/MultirotorMixer && /usr/bin/python3 /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/tools/px_generate_mixers.py -f /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/dodeca_bottom_cox.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/dodeca_top_cox.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/hex_cox.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/hex_plus.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/hex_t.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/hex_x.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/octa_cox.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/octa_cox_wide.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/octa_plus.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/octa_x.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_deadcat.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_h.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_plus.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_s250aq.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_vtail.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_wide.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_x_cw.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_x.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_x_pusher.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_y.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/tri_y.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/twin_engine.toml -o mixer_multirotor.generated.h
Failed to import numpy:
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try `git clean -xdf` (removes all
files not under version control). Otherwise reinstall numpy.
Original error was: cannot import name 'multiarray'
You may need to install it using:
pip3 install --user numpy
[3/535] Generating mixer_multirotor_normalized.generated.h
FAILED: src/lib/mixer/MultirotorMixer/mixer_multirotor_normalized.generated.h
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/src/lib/mixer/MultirotorMixer && /usr/bin/python3 /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/tools/px_generate_mixers.py --normalize -f /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/dodeca_bottom_cox.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/dodeca_top_cox.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/hex_cox.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/hex_plus.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/hex_t.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/hex_x.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/octa_cox.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/octa_cox_wide.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/octa_plus.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/octa_x.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_deadcat.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_h.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_plus.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_s250aq.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_vtail.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_wide.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_x_cw.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_x.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_x_pusher.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_y.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/tri_y.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/twin_engine.toml -o mixer_multirotor_normalized.generated.h
Failed to import numpy:
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try `git clean -xdf` (removes all
files not under version control). Otherwise reinstall numpy.
Original error was: cannot import name 'multiarray'
You may need to install it using:
pip3 install --user numpy
[4/535] Generating mixer_multirotor_6dof.generated.h
FAILED: src/lib/mixer/MultirotorMixer/mixer_multirotor_6dof.generated.h
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/src/lib/mixer/MultirotorMixer && /usr/bin/python3 /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/tools/px_generate_mixers.py --sixdof -f /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/dodeca_bottom_cox.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/dodeca_top_cox.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/hex_cox.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/hex_plus.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/hex_t.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/hex_x.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/octa_cox.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/octa_cox_wide.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/octa_plus.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/octa_x.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_deadcat.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_h.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_plus.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_s250aq.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_vtail.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_wide.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_x_cw.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_x.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_x_pusher.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/quad_y.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/tri_y.toml /home/zth/catkin_ws/Firmware/src/lib/mixer/MultirotorMixer/geometries/twin_engine.toml -o mixer_multirotor_6dof.generated.h
Failed to import numpy:
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try `git clean -xdf` (removes all
files not under version control). Otherwise reinstall numpy.
Original error was: cannot import name 'multiarray'
You may need to install it using:
pip3 install --user numpy
[5/535] Generating serial_params.c
FAILED: generated_params/serial_params.c
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/src/lib/parameters && /usr/bin/cmake -E make_directory /home/zth/catkin_ws/Firmware/build/px4_sitl_default/generated_params && /usr/bin/python3 /home/zth/catkin_ws/Firmware/Tools/serial/generate_config.py --params-file /home/zth/catkin_ws/Firmware/build/px4_sitl_default/generated_params/serial_params.c --serial-ports --config-files /home/zth/catkin_ws/Firmware/src/lib/battery/module.yaml /home/zth/catkin_ws/Firmware/src/drivers/gps/module.yaml /home/zth/catkin_ws/Firmware/src/modules/mavlink/module.yaml
Failed to import jinja2: No module named 'jinja2.asyncsupport'
You may need to install it using:
pip3 install --user jinja2
FAILED: external/Stamp/sitl_gazebo/sitl_gazebo-build
cd /home/zth/catkin_ws/Firmware/build/px4_sitl_default/build_gazebo && /usr/bin/cmake --build .
ninja: build stopped: subcommand failed.
Makefile:198: recipe for target 'px4_sitl_default' failed
make: *** [px4_sitl_default] Error 1
The first mistake is:
ModuleNotFoundError: No module named 'jinja2.asyncsupport'
Solution process:
1. Install jinja2 according to the command given in the error prompt:
zth@SugoAsurada:~/catkin_ws/Firmware$ pip install jinja2
Collecting jinja2
Using cached https://files.pythonhosted.org/packages/30/9e/f663a2aa66a09d838042ae1a2c5659828bb9b41ea3a6efa20a20fd92b121/Jinja2-2.11.2-py2.py3-none-any.whl
Collecting MarkupSafe>=0.23 (from jinja2)
Downloading https://files.pythonhosted.org/packages/fb/40/f3adb7cf24a8012813c5edb20329eb22d5d8e2a0ecf73d21d6b85865da11/MarkupSafe-1.1.1-cp27-cp27mu-manylinux1_x86_64.whl
Installing collected packages: MarkupSafe, jinja2
Successfully installed MarkupSafe-1.1.1 jinja2-2.11.2
The version of jinja2 installed with this command is 2.11.2.
In ~ / catkin_ View the version of jinja2 under the directory WS / firmware,
zth@SugoAsurada:~/catkin_ws/Firmware$ python
Python 2.7.17 (default, Sep 30 2020, 13:38:04)
[GCC 7.5.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import jinja2
>>> jinja2.__version__
'2.10'
>>> exit()
The resulting version is 2.10.
Obviously, jinja2 was not installed in the path we needed.
2. Check the location of jinja2 in the current path, and find the cause of the problem
zth@SugoAsurada:~/catkin_ws/Firmware$ python
Python 2.7.17 (default, Sep 30 2020, 13:38:04)
[GCC 7.5.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import jinja2
>>> jinja2.__file__
'/usr/lib/python2.7/dist-packages/jinja2/__init__.pyc'
>>> exit()
After coming to the directory ‘/ usr / lib / python2.7/dist-packages/jinja2’, I found that there are no files in the directory asyncsupport.py . The PY file is missing from the official website.
3. Delete jinja2 from the specified directory and install a new jinja2
Unload command:
sudo rm -r /usr/lib/python2.7/dist-packages/jinja2
Output results:
zth@SugoAsurada:~/catkin_ws/Firmware$ sudo rm -r /usr/lib/python2.7/dist-packages/jinja2
zth@SugoAsurada:~/catkin_ws/Firmware$ python
Python 2.7.17 (default, Sep 30 2020, 13:38:04)
[GCC 7.5.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import jinja2
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named jinja2
>>> exit()
Installation command:
sudo pip install jinja2 --target=/usr/lib/python2.7/dist-packages
Inspection output:
zth@SugoAsurada:~/catkin_ws/Firmware$ python
Python 2.7.17 (default, Sep 30 2020, 13:38:04)
[GCC 7.5.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import jinja2
>>> jinja2.__file__
'/usr/lib/python2.7/dist-packages/jinja2/__init__.pyc'
>>> jinja2.__version__
'2.11.2'
>>> exit()
Solution of “TCLs parsing failed” when dnf starts
Today, after copying the DNF file from the virtual machine and then logging in to the game with wegame, there is a problem. The pop-up box shows that the service failed to connect to the channel. Then I log in with the client and the following prompt pops up:
The solution is as follows:
X:\Dungeons and Warriors\TCLS\Client.exe
X: refers to the location of the disk where it is stored
These can solve the TCLs parsing failed error.
RuntimeError: Integer division of tensors using div or/is no longer supported, and in a future release div will perform true division as in Python 3. Use true_divide or floor_divide (// in Python) instead.
from torchvision import transforms
import numpy as np
data = np.random.randint(0, 255, size=12)
img = data.reshape(2, 2, 3)
print(img.shape)
img_tensor = transforms.ToTensor()(img) # Convert to tensor
print(img_tensor)
print(img_tensor.shape)
print("*" * 20)
norm_img = transforms.Normalize((10, 10, 10), (1, 1, 1))(img_tensor) # Perform normative processing
print(norm_img)
Operation effect:
reason:
Pytorch1.5.0 is OK, but when upgrading to 1.6.0, it is found that division between tenor and int cannot be directly performed with ‘/’.
Solution:
Standardize the data processing
Example code:
from torchvision import transforms
import numpy as np
data = np.random.randint(0, 255, size=12)
img = data.reshape(2, 2, 3)
print(img.shape)
img_tensor = transforms.ToTensor()(img) # convert to tensor
print(img_tensor)
print(img_tensor.shape)
print("*" * 20)
img_tensor = img_tensor.float() # Add this line
norm_img = transforms.Normalize((10, 10, 10), (1, 1, 1))(img_tensor) # Perform normalization
print(norm_img)
Results of operation:
Android studio error Error:Execution failed for task
Recently, when doing the face recognition check-in system based on Android platform, after importing the third party’s lib package, Android studio reported the following error:
Error:Execution failed for task ‘: app:transformResourcesWithMergeJavaResForDebug ’.
com.android.build . api.transform.TransformException : com.android.builder . packaging.DuplicateFileException : Duplicate files copied in APK META-INF/LICENSE
File1: E:\Workspaces\Swface\app\libs\httpcore-4.4.4.jar
File2: E:\Workspaces\Swface\app\libs\httpclient-4.5.2.jar
After consulting the data, it is found that there are duplicate contents loaded in the meta-inf directory of the jar package. Open the corresponding jar package 
sure enough, both of the two jar packages have license, and further Click to find that the contents are exactly the same. However, it seems that the next three files are also duplicate (only there is no clear prompt in the error report), so we can solve them all at once
all Now that we know that it is caused by repeatedly loading files, the solution is to remove the repeatedly loaded files during compilation. The specific operations are as follows:
buildTypes {
...... (omit part of the code)
// Add the following code here
packagingOptions {
exclude 'META-INF/DEPENDENCIES'
exclude 'META-INF/NOTICE'
exclude 'META-INF/LICENSE'
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/NOTICE.txt'
exclude 'META-INF/ASL2.0'
exclude 'META-INF/notice.txt'
}
}
``3. Rebuild project
A link to the original text is attached
In recent days, I have learned easyUI and used the tree component. After n days of pain, I finally came out. Now I will summarize some problems.
1. In the official demo, all the data is taken from the. JSON file. In practical application, it is obviously impossible to do so. If you want to take it from the database, then the problem is, how to get it?There’s no explanation in the official demo, and I haven’t found any results after searching online for a long time
Methods 1:Ajax is fetched, after the web interface is loaded, the Ajax is called, and the value is spliced from the background in the database, and spliced into JSON. There are many methods of splicing. Here is not enumerated. After the completion of the mosaic, JSON is written back by response writer. In JS, the data parameter of tree is the returned JSON (time reason, this method is not tested, and the theory is feasible).
Method 2: root method 1 is similar: the following is the code
HTML code of tree:
<ul id="department_tree" class="easyui-tree"></ul>JS code of tree:
/**
* @argument Fetching data from a tree by URL
* @author ZHENGWEI
* @date 2015-5-8
* @version 1.0
*/
$(document).ready(function(){
/* Called when loading is complete*/
$("#department_tree").tree({
/*JSON spliced address*/
url:'CompanyStaffAction!listCompanyDepartment.action',
/*Linked lines*/
lines:true,
/*animation effect*/
animate:true
});
})
The URL is the action returned to JSON in the background, and the code is as follows
/**
* Search company's department information
* @author ZHENGWEI
* @throws JSONException
* @throws IOException
* @date 2015-5-7
*/
public String listCompanyDepartment() throws JSONException, IOException{
//Set the encoding format to prevent Chinese characters from being garbled
response.setCharacterEncoding("UTF-8");
//return company department information
List<CompanyDepartmentInfo> companyDepartmentInfoList = this.companyStaffService.listCompanyDepartment();
// Declare the JSONArray object and build the tree
JSONArray jsonChildTreeArray = new JSONArray();
//condemn empty
if(companyDepartmentInfoList.size() != 0){
for(CompanyDepartmentInfo companyDepartmentInfo:companyDepartmentInfoList){
JSONObject jsonChildInfoObject = new JSONObject();
jsonChildInfoObject.put("id", '"'+companyDepartmentInfo.getDepartmentId()+'"');
jsonChildInfoObject.put("text", companyDepartmentInfo.getDepartmentName());
jsonChildTreeArray.put(jsonChildInfoObject);
}
}
JSONObject jsonDepartmentTree = new JSONObject();
jsonDepartmentTree.put("id", "0");
jsonDepartmentTree.put("text", "CompanyDepartmentTree");
jsonDepartmentTree.put("state", "open");
// turn the jsonChildTreeArray into a child node
jsonDepartmentTree.put("children", jsonChildTreeArray);
//string type, add '[]' to JSON
String treeData = jsonDepartmentTree.toString();
treeData = "["+treeData+"]";
// Declare PrintWriter variable to pass back JSON
PrintWriter out = response.getWriter();
out.write(treeData);
return null;
}It must be noted that,
After the encapsulation of JSON, make sure to print it to see if there is a [] symbol package outside of JSON, otherwise tree can’t read the data!!!!
The final results are as follows:
It’s a very hard process… It’s tears when I talk too much, and many problems on the Internet can’t reach the point. I’ve thought about it for many days, and I hope that students who study in the future will avoid detours
Because AJAX is executed asynchronously by default, that is, the next line of JS statement is executed without waiting for the request to finish, resulting in null assignment.
Solution:
Add the following code:
$.ajax({
async:false,
//******other codes
});
It can be solved.
Today, when I was working, I encountered a problem. I used $. Ajax to transfer data to the background, which can operate correctly in the background, but success did not respond, and error responded. After checking the document, I realized that after jQuery version 1.4, all the returned JSON formats must meet the requirements json.org Success can only be called back correctly in the format of, otherwise jQuery will think that it returns an error Here is an example:
JSONObject j = new JSONObject();
j.put("msg","SUCCESS");
PrintWriter out = response.getWriter();
out.write(j.toString());This is correct. JQuery calls back success
String j = "123";
PrintWriter out = response.getWriter();
out.write(j);This is wrong, jQuery will think it is wrong
I checked the information on the Internet. The reason is that when pagination is used, the query result is empty, but pagination is also set, so an error will be reported.
There are two solutions:
Scheme 1, add conditions under paging code
public static List<?> getList(Session session , String HQL , int currentPage, int pageSize){
Query q = session.createQuery(HQL);
if(currentPage != 0 && pageSize != 0 && q.list().size()!= 0)
{
int startRow = (currentPage-1)*pageSize;
q.setFirstResult(startRow);
q.setMaxResults(pageSize);
}
List<?> list = q.list();
//Return search results
return list;
} The if condition is that when the query result is empty, there will be no pagination, so no error will be reported.
Scheme 2: add this sentence to the hibernate configuration file
<property name="jdbc.use_scrollable_resultset">false</property>Error 1045 (28000): access denied for user ‘root’ @’localhost ‘(using password: Yes)
This prompt is a password error. If you forget your password, you can use this method to reset your password
* * 1. * * the first step to reset your password is to skip the password authentication process of MySQL
modify the MySQL configuration file
and find it in the directory of C:// program files/MySQL/MySQL server 5.7 my.cnf/my .ini/my- default.ini One of the three is modified
in [mysqld] skip-grant-tables
**2 * * restart MySQL service
net start mysql
If this command reports an error and cannot start MySQL service, run it as an administrator cmd.exe ( cmd.exe In the directory of C: Windows: system32
**3. * * implementation again
mysql -u root -p
You don’t need to enter a password. Press enter to enter mysql
**4 * * Change Password
update user set Password=PASSWORD('888888') where User='root';
FLUSH PRIVILEGES;
Use 888888 to login next time
5. If 4 reports error 1820 (HY000): you must set password before executing this statement, execute the code
SET PASSWORD = PASSWORD('123456');
or SET PASSWORD = '123456';
Then prompt query OK, 0 rows affected (0.00 sec)
and you can log in with 123456 password
Today, when I was practicing under Linux, I saw two network cards under the ifconfig command, one is the l0 network card, and the other is eth1. At the beginning, it was l0 and eth0. I don’t know how it became eth1, so I became obsessive-compulsive and deleted all network card configurations. As a result, when I restarted the network service, it was a tragedy…
First of all, let’s talk about the reason why my network card changed from eth0 to eth1: it was due to the previous operation error, and I didn’t know this before, so I followed the online tutorial. As a result, I configured eth0 to eht0, and the system couldn’t find it. Later, due to the configuration failure, I configured it once, and the result became eth1. Until today, I found this error…
Because I couldn’t change eth0, I saw that there was a tutorial on the Internet, but it didn’t work.. (I don’t know why.) so I deleted all the network card configuration with one hand. The steps are as follows:
First, stop the network service
1./etc/sysconfig/network scripts directory, delete the network card configuration that you want to delete. I want to delete eth1, so RM – RF ifcfg-eth1, and so on
2./etc/sysconfig/Networking/devices directory, delete all files, simple and easy
3./etc/sysconfig/Networking/profiles/default directory, delete all files related to eth1
After starting the network service, there should be only one l0 network card left, and the service is stopped
Write network card configuration file
1./etc/sysconfig/network scripts directory, write the configuration file with VI, here I name it ifcfg-eth0 (my eth0 is finally coming back)
The configuration is as follows:
DEVICE=eth0
ONBOOT=yes
IPADDR=172.168.0.108
BOOTBROTO=none
NETMASK=255.255.255.0
PREFIX=24
Here is a simple write a few configuration, complete configuration I can not remember, there is no need to remember. I found a more complete configuration on the Internet, you can have a look
DEVICE=eth0 #Indicates the device name
NM_CONTROLLED=yes #network mamager's parameter, effective in real time, no need to reboot
ONBOOT=yes #Set to yes to enable network connection automatically on power on
IPADDR=192.168.21.129 #IP address
BOOTPROTO=none # set to none to disable DHCP, set to static to enable static IP address, set to dhcp to enable DHCP service
NETMASK=255.255.255.0 #subnet mask
DNS1=8.8.8.8 #the first dns server
TYPE=Ethernet #Network type is: Ethernet
GATEWAY=192.168.21.2 #set gateway
DNS2=8.8.4.4 #second dns server
IPV6INIT=no #Disable IPV6
USERCTL=no #Whether to allow non-root user to control the device, set to no, can only be changed by root user
HWADDR=00:0C:29:2C:E1:0F #Mac address of the NIC
PREFIX=24
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
NAME="System eth0" #Define the device name
After I started the network service, I reported the error of device eth0 does not see to be present, delaying initialization. After searching on the Internet, I found that it was caused by the MAC address mismatch. There are two solutions
1. 70 persistent in/etc/udev/rules. D directory- net.rules File, open, modify the MAC address inside, and ifcfg-eth0 can be the same
2. Delete/etc/udev/rules.d/70-persistent directly- net.rules File, then restart, simple and crude
After restart, we will find that the network service can start normally, and the current network card is l0 and eth0