Execute
Error message
Node 127.0.0.1:30001 is not configured as a cluster node
Error reason:
/Cluster enabled yes is commented out in the root/soft/redis-5.0.5/redis.conf file
Solution:
VI redis.conf uncomment and save.
Restart redis
If it still fails to start, refer to redis cluster tutorial – redis
https://redis.io/topics/cluster-tutorial
Installation starts here
In this case, the port is occupied 
solution:
window + R open run input CMD open DOS command window
Input: netstat - ano view port
the red mark indicates that the port is occupied,
Enter the TCP number corresponding to taskkill/F/T/im in CMD to turn off the occupied port 
and then NPM run serve can be run normally
Background:
System: MAC system
problem: Python runs the python project provided by others, but the file in the project exists, but it prompts that there is no such file
specific error:
error: cannot run program “/ users/Bob/pychamprojects/untitled/venv/bin/Python” (in directory “/ users/Bob/desktop/1”): error = 2, no such file or director
Solution:
delete the hidden. Idea file under the project, restart pycharm and run it again
Today, during the image test in envi, I wanted to back up (save) the image, but the following error was reported
saverasterfile failed: idlnametadata error: nagetmetadata getmetadatajob failed
the reason is that Chinese cannot appear in the storage path, otherwise an error will be reported
When exporting to raster data, envi needs to read the metadata in the input file. If there is Chinese in the path, it will be unable to read and this error will be reported. At this time, you can change the storage path
the path where I read the image happens to have Chinese files, so I want to change it to English
Problems encountered:
after ADB root (obtaining root permission), execute ADB remount (adding read-write permission to system files/system,/vendor,/OEM) and report:
remount of/system failed: read-only file system error
Solution:
1. ADB disable verity will appear
verity disabled on/system
now reboot your device for settings to take effect
2. ADB reboot restart the device.
then remout can succeed
My computer is a MacBook Pro M1 chip, which is the most difficult computer to configure. Ah, humble MAC people can cry every time.
I downloaded the wordcloud package in Anaconda and reported errors after import. I tried all the methods found in CSDN to deal with this error again. No one is successful, all kinds of problems. Later, I found a solution on the Internet, and the address is here: https://pypi.org/project/wordcloud/
In fact, it’s very simple. If you have tried PIP install on the terminal and failed, first enter Xcode select — install to ensure that you have downloaded this. If you have downloaded it like me, there will be
Just enter this
CONDA install – C CONDA forge wordcloud
to run it. When this appears, enter y
After running in the terminal, reopen your Spyder or pycham and re import wordcloud to stop reporting errors!
Cannot find keymap “error in windows copy” appears in idea
Click file → settings → keyboard mapping → modify the top windows to eclipse → application → reopen to solve the problem
Error: when you open matlab on the desktop, the following error will appear
solution: delete matlab on the desktop and open the application in MATLAB 2018/bin/Matlab under the software installation path
my computer is windows 64 bit. Matlab was correctly installed and cracked according to the online tutorial. At first, it was thought that the security key or something had expired, The solution was discovered later
Solution:
1. Execute run * * main() with coverage;
2. Modify gradle.xml under. Idea
< GradleProjectSettings> Add a row under the label node
< option name=”delegatedBuild” value=”false” />
After saving, you can use run * * with Main() and debug * * with main()
Learning content:
Dockerfile build image
[root@lms tomcat]# docker build -t mytomcat:0.1 .
Sending build context to Docker daemon 186.5MB
Step 1/15 : FROM centos
---> 300e315adb2f
Step 2/15 : MAINTAINER lms<[email protected]>
---> Running in 518a2a24a366
Removing intermediate container 518a2a24a366
---> 6e71bc54b0f9
Step 3/15 : COPY readme.txt /usr/local/tomcat/readme.txt
---> a2522531c257
Step 4/15 : ADD jdk-8u161-linux-x64.tar.gz /usr/local/tomcat/
failed to copy files: Error processing tar file(exit status 1): unexpected EOF
the above error occurs. It is likely that an error occurred when uploading the tar file. Therefore, you can upload the file again!
RuntimeError: nvrtc: error: failed to open libnvrtc-builtins.so.11.1.
Make sure that libnvrtc-builtins.so.11.1 is installed correctly.
It’s because the python version is wrong. I can’t use Python 3.9 and python 3.6. I can use Python 3.7.
VMware Workstation startup error
Specific error:
Unable to open kernel device "\\. \VMCIDev\VMX": operation completed successfully. Did you reboot after installing VMware Workstation? The module "DevicePowerOn" failed to start. Failed to start the virtual machine.
Solution:
1. Locate the. VMX file under the virtual machine installation path
2. Modify vmci0.present = “true” to vmci0.present = “false”