Category Archives: How to Fix

make modules_ Install compiles the kernel driver as a module, and the location of. Ko file in the root file

Based on the kernel Documentation: Documentation/kbuild/modules. TXT: Building External modules section 5 describes position description
can be determined as follows:

--- 5.1 INSTALL_MOD_PATH

	Above are the default directories but as always some level of
	customization is possible. A prefix can be added to the
	installation path using the variable INSTALL_MOD_PATH:

		$ make INSTALL_MOD_PATH=/frodo modules_install
		=> Install dir: /frodo/lib/modules/$(KERNELRELEASE)/kernel/

	INSTALL_MOD_PATH may be set as an ordinary shell variable or,
	as shown above, can be specified on the command line when
	calling "make." This has effect when installing both in-tree
	and out-of-tree modules.

--- 5.2 INSTALL_MOD_DIR

	External modules are by default installed to a directory under
	/lib/modules/$(KERNELRELEASE)/extra/, but you may wish to
	locate modules for a specific functionality in a separate
	directory. For this purpose, use INSTALL_MOD_DIR to specify an
	alternative name to "extra."

		$ make INSTALL_MOD_DIR=gandalf -C $KDIR \
		       M=$PWD modules_install
		=> Install dir: /lib/modules/$(KERNELRELEASE)/gandalf/

Module not found: Error: Can’t resolve ‘sass-loader’ in ‘F:\H5\project-h5’

Module not found: Error: Can’t resolve ‘sass-loader’ in ‘F:\H5\project-h5’

The error is more straightforward. Without the SASS-Loader, we just need to install the specified plug-in as required.

npm install sass-loader -D
npm install node-sass -D



The second installation will take a little longer, so be patient.
Meng New exclusive extension: -d =& GT; — Save-dev, and another -s => – save.
If the two plug-ins installed after the following error ↓

This may be a compilation error due to a high version of the SASS-Loader

npm uninstall sass-loader（Uninstall current version） 
npm install [email protected] --save-dev

Recompiling is successful

LIBGL error: no matching fbconfigs or visual s found

Installing or updating the Nvidia driver may cause the libGL dynamic link library link to break or point to the wrong link. During make compilation, the following Bug prompts generally occur:

Solution steps:
1. Swrast is mainly used for graphics rendering, and the problem description does not find the hardware driver of the graphics card. The installed libGL libraries and the links to these libGL libraries can be passed
Sudo find/usr-iname “* libgl.so *” -exec ls-{} \;
In general, updating or installing video drivers breaks these links, especially /usr/lib/ x86_64-Linux-gnu /mesa/ libgl.so.1.2.0 sometimes breaks the links
Or pointing to the wrong link
2. For the problem of 1, libgl.so.1.2.0 points to the correct opengL library: sudo ln-s /usr/lib/ libgl.so.1 /usr/lib/x86_64-linux-gnu/mesa/ libgl.so.1.2.0
When recompiling make, the Bug is solved and the classic fireworks dynamic diagram appears

Building virtual machine environment based on kvm-qemu under ubuntu12.10 (12)

In addition to the initial mounting of the optical drive in the definition file of the virtual machine, Libvirt also has a dynamic platter mount method, which USES the Attach -device command in the virsh command. The format of this command is as follows:

dev@devhost:/opt/vm/xpvm1$sudo virsh attach-device < domain-name> filename

Where filename is a file defined in XML format (we’ll call it Disk.xml) :

< Disk type = “file” device = “cdrom” & gt; < The source file = “/ opt/vm/drivers. Iso/& gt;” < Target HDC dev = “”/& gt; < readonly/> < /disk>

The virtual machine was originally mounted ona CD-ROM called Windows_xp_professional_sp3_x89.ISO:

< domain type=’kvm’> & lt; name> XP_VM< /name> & lt; uuid> 91f15b08-e115-4016-a522-b550ff593af9< /uuid> & lt; memory> 1024000< /memory> & lt; currentMemory> 1024000< /currentMemory> & lt; vcpu> 1< /vcpu> & lt; os> & lt; Type the arch = ‘x86_64 machine =’ PC ‘& gt; hvm< /type> & lt; boot dev=’hd’/> & lt; boot dev=’cdrom’/> & lt; Bootmenu enable = ‘yes’/& gt; & lt; /os> & lt; features> & lt; acpi/> & lt; apic/> & lt; pae/> & lt; /features> & lt; cpu> & lt; The topology sockets = ‘1’ cores = ‘1’ threads = ‘1’/& gt; & lt; /cpu> & lt; = ‘localtime’ clock offset/& gt; & lt; on_poweroff> destroy< /on_poweroff> & lt; on_reboot> restart< /on_reboot> & lt; on_crash> restart< /on_crash> & lt; devices> & lt; emulator> /usr/bin/qemu-system-x86_64< /emulator> & lt; = ‘disk disk type =’ file ‘device’ & gt; & lt; Qemu driver name = ‘ ‘type =’ qcow2 ‘/ & gt; & lt; The source file = ‘/ opt/vm/xpvm1 xp_c. Img’ lock = ‘exclusive’/& gt; & lt; Target dev = ‘hda bus =’ ide ‘/ & gt; & lt; /disk> & lt; = ‘disk disk type =’ file ‘device’ & gt; & lt; Qemu driver name = ‘ ‘type =’ qcow2 ‘/ & gt; & lt; The source file = ‘/ opt/vm/xpvm1 xp_d. Img’ lock = ‘exclusive’/& gt; & lt; target dev=’hdb’ bus=’ide’/> & lt; /disk> & lt; = ‘cdrom disk type =’ file ‘device’ & gt; & lt; source file=’/opt/vm/windows_xp_professional_sp3_x86.iso’/> & lt; target dev=’hdc’/> & lt; readonly/> & lt; /disk> & lt; The channel type = ‘spicevmc & gt; & lt; Target type = ‘virtio’ name = ‘com. Redhat. Spice. 0’/& gt; & lt; Alias name = ‘virserial – channel1’/& gt; & lt; /channel> & lt; Interface type = ‘bridge’ & gt; & lt; MAC address = ’52:54:00:7 b: a8: d8’/& gt; & lt; The source bridge = ‘virbr0/& gt; & lt; = ‘vnet1’ target dev/& gt; & lt; The model type = ‘virtio/& gt; & lt; /interface> & lt; Input type = ‘tablet’ bus = ‘usb’/& gt; & lt; Graphics type=’spice’ port=’4000′ autoport=’no’ listen=’0.0.0.0′> & lt; Listen type = ‘address’ address = ‘0.0.0.0’/& gt; & lt; Agent_mouse mode = ‘off’/& gt; & lt; /graphics> & lt; Memballoon model = ‘virtio & gt; & lt; alias name=’balloon0’/> & lt; /memballoon> & lt; Sound model = ‘ac97 & gt; & lt; Address type=’ PCI ‘domain=’0x0000′ bus=’0x00′ slot=’0x04’ function=’0x0’/> & lt; /sound> & lt; video> & lt; The model type = ‘QXL vram =’ 65536 ‘heads =’ 1 ‘/ & gt; & lt; /video> & lt; /devices> & lt; qemu:commandline> & lt; Qemu: arg value = “-” CPU/& gt; & lt; Qemu: arg value = “kvm64″/& gt; & lt; /qemu:commandline> < /domain>

 
After installing the system, what you see in the virtual machine is:

 
Instead of re-closing and defining a new disc file, we can change the disc using the Virsh Attach – Device command:
 

dev@devhost:/opt/vm/xpvm1$sudo virsh attaching -device XP_VM disk.xml

 

The advantage of doing this is that in some cases we can achieve the effect of a hot plug disc without having to restart the virtual machine.
Note: It should be noted that, after testing, there must first be an initial optical device in the defined XML, otherwise the execution of another optical device will fail: internal Error No device with bus ‘ide’ and target ‘HDC’ reported error.
That is, this is actually a swap, not a dynamic mount, and the cd-ROM device itself must be defined in XML before the virtual machine can be started.
 

Unable to find utility “instruments”, not a developer tool or in PATH

An error occurred while debugging a project on ios

unable to find utility “instruments”, not a developer tool or in PATH

error cause:

The default version
is not set when xcode has been upgraded or when multiple versions of xcode coexist

solution:

Open up Xcode and select

Go to Locations, and select the version you want to use in Command Line Tools

At this point, exit Xcode completely and try run-ios again. Everything is ok!

You have not concluded your merge (MERGE_HEAD exists)

Problems with Using SourceTree Merge branches:

You have not concluded your merge (MERGE_HEAD exists).
Please, commit your changes before you can merge.

Then click Termianl on SourceTree and an error occurs:


The error may be caused by code that you pulled down before not merging automatically.
There are two solutions:
1. Keep your local changes

git merge --abort

git reset --merge

Be sure to commit the local merge after merging
Then get the online warehouse

git pull


2. Down the code version, discard local modifications
This is not recommended, but if you have small local changes, or if you have a backup copy of your own, you can overwrite it locally directly with the latest version on your line

git fetch --all

git reset --hard origin/master

git fetch

Of course, the dumbest option is to clone a piece of code and discard the working directory, which is clumsy but equally effective.

Opencv error: insufficient memory

Recently, I have been using the function Haartraining provided by Opencv to train the classifier. The previous picture used was 20*20, which could train the classifier. Later, when it was changed to 80*86, the error was reported, which was due to insufficient memory. Here is a screenshot of the error report:

So, I looked it up on the Internet and found a solution: change the debugging platform from 32 to 64, because there seems to be a problem with 32 bits, no matter how big your actual memory is, it only works around 2 or 3 gs. Another solution is to make your training pictures smaller.

Error 1136 (21s01): column count doesn’t match value count at row 1

After creating the library, I inserted the data into ERROR “ERROR 1136 (21S01): Column count doesn’t match value Count at row 1”. At the beginning, I thought it was a data type ERROR. Then DESC looked at it and found that it was char (10).
 

You can see that the unknown column is displayed, which is obviously an SQL statement error, and then you can look at my statement and see that the quotes are missing (manual face-covering).
Mysql> insert into student values(ka,18);
ERROR 1054 (42S22): Unknown column ‘ka’ in ‘field list’
 
Mysql> insert into student values(‘saoka’,’18’);
Query OK, 1 row affected (0.01 SEC)
 

Pychar runtime error r6034 solution

After Updating PyCharm, open a program, set the Project Interpreter and the software starts Updating Python Interpreter. It had run smoothly before, but this time it got stuck:

Simultaneously report an error:

 
Found a solution to this problem on Stack Overflow, so share it here. Click here for the original.
Step1: download Process Explorer and open procexp.exe inside.
Step2: select view-& gt from the menu of software interface; lower pane view -> Then find the Python. exe under the Pycharm directory and click, and the bottom pane should display a list of DLLs loaded for the application.

Step3: find “MSVCR??” in the DLL list. .DLL “, pay attention to the following path, as long as it is not under the path of “C:\Windows\WinSxS”, it should be deleted or renamed the suffix. For example, in the figure above, there is a MSvCR90. DLL under D:\Anaconda3\envs\ Python27 \msvcr90. DLL. Find it and rename it “MSvCR90. DLL -bak”.
Step4: restart pycharm and it will be ok.

It will appear as soon as it is turned on BTServer.exe -Application error (0xc0150002)

I have nothing to uninstall VS2015, looking at the C disk space is only a little, began to look for a large software uninstall, did not expect to uninstall some runtime library,
The result is a “Btserver.exe – application error” at 0xc0150002.
I continued to search for solutions, reinstalled the runtime, patched Microsoft Visual C++ 2005 SP1 Redistributable Package (x86) and Microsoft Visual C++ 2008, and
still didn’t work.
Later I saw Baidu know there is a method, uninstall the Bluetooth Driver that program, restart, it is good, then reinstall the Bluetooth Driver, then boot did not appear.

Attach the original author advice website: https://zhidao.baidu.com/question/1691955593795084148.html