Category Archives: Error

[Solved] Unity Error: Assertion failed on expression: ‘IsMatrixValid(matrix)‘…

Problem description:

I get an error when running the Interaction_Example of steam VR, and the running screen is a black screen, where unity is 2021.3.6f1c1, steam VR(2.7.3), steamvrSDK( 1.23.7), The headset is HTC Vive pro2. The specific content of the error is as follows:

Assertion failed on expression: 'IsMatrixValid(matrix)'
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

Screen position out of view frustum (screen pos 0.000000, 0.000000, 300.000000) (Camera rect 0 0 0 0)
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)


Problem Solving:

Click Edit->Project Settings…->XR Plug-in Management->OpenVR and set Stereo Rendering Mode to Multi Pass.

[Solved] Message from debugger: debug-server is x86_64 binary running in translation, attached failed.

After transferring an Xcode project from an Intel Mac to an Apple M1 chip, code compiles successfully on the M1 chip, but displays the following error at runtime:

Message from debugger: debug-server is x86_64 binary running in translation, attached failed.

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I have checked Xcode’s “Open with Rosettea” option, but it still doesn’t work successfully on the M1 chip. So this program doesn’t work for me. . .
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Valid solutions:
Find Edit Scheme -> Run -> Debug excitable, Cancel this option to run successfully.
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Note: If this method fails to Solve your problem, Please refer to the link below:
debugserver is x86_64 binary running in translation, attached failed. Could not attach to pid

Failed to register bundle identifier. The app identifier “xxx” cannot be registered to your developm


Failed to register bundle identifier. The app identifier “xxx” cannot be registered to your development team because it is not available. Change your bundle identifier to a unique string to try again.

Provisioning profile “iOS Team Provisioning Profile: *” doesn’t support the Associated Domains and Push Notifications capability.

Provisioning profile “iOS Team Provisioning Profile: *” doesn’t include the aps-environment and entitlements.

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Log in to Xcode with the apple account that supports the APP, and select the team where the account is locatedPlease add a picture description

As shown in the picture, Select the team corresponding to the account
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[Solved] svn Error: E230001: Server SSL certificate verification failed: certificate issued

svn: E230001: Server SSL certificate verification failed: certificate issued

means that the server’s SSL certificate verification failed.


In the terminal, Execute svn ls https://*/svn/ (my project address)

Then the terminal will ask you to choose R, t, or p, p for accept

We enter p and press Enter,then you will be prompted to enter the computer user’s password and svn account password,just follow the prompts

After all input is complete, Press Enter

[Solved] Remote URL test failed: Could not read from remote repository.


I set a password when I generated the key, which caused this problem


1. Regenerate the key through the command

ssh-keygen -t rsa -C "[email protected]"

Enter three times in a row, do not set a password (I just set a password here and caused the problem)

2. Go to C:\Users\username\.ssh and copy the content of, and then add it to gitlab (title will be automatically generated)

[Solved] hardhat Failed to Verificate Error: Failed to send contract verification request

My workaround

Just like you, my first suspicion was on the GFW and I set up my hosts file like you did.
ping success with and without VPN, which means there is NO connection issue between our computers and the domain.

Since there was almost no waiting time when my console emit the error messages,
it really didn’t feel like a timeout error.

secure TLS connection in the error message got my attention.
Is there a way we could modify the endpoint URL to http protocol?

Luckily yes:
hardhat-etherscan | Ethereum development environment for professionals by Nomic Foundation

I tried the following:

etherscan: {
  apiKey: {
    rinkeby: ""
  customChains: [
      network: "rinkeby",
      chainId: 4,
      urls: {
        apiURL: "",  // https => http
        browserURL: ""

Then everything works with and without VPN.

Source From: Lesson 6: Verify contract fails behind China Great Firewall / GFW with ECONNRESET · Discussion #2247 · smartcontractkit/full-blockchain-solidity-course-js · GitHub

[Solved] Unity packaged and exported apk error: Failed to load’

Today I packaged the APK on my mobile phone and found that I couldn’t enter the main page, and it kept prompting
As shown in the figure below, the part of the package name is lost

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Failure to initialize! Your hardware does not support this
application. Failed to load’ java.lang.
UnsatisfiedLinkError: dalvik.system.PathClassLoaderl DexPathList|(zip
file “/data/app/ package name-v9hxALnNbA
vIVbwOmlIHfw==/base.apk”I,nat iveLibraryDirectories=|/data/app/
package name-v9hxALnNb AvIVbwOmlIHfw==/lib/arm64,/data/
app/package name-v9hxALn NbAvIVbwOmlIHfw==/base.apk!/
lib/arm64 -v8a, /system/lib64, /system/product/lib64ll couldn’t find
“” Press OK to quit.

I checked several methods but couldn’t use it. Finally, I changed the compilation settings to solve the problem.
Changed to ARMv7 as shown in the figure and it will be normal. If ARM64 is needed, it can be solved elsewhere.
Now this is the case. The package is delivered normally, record it
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Julia LoadError: Failed to precompile GR [How to Solve]

Julia LoadError: Failed to precompile GR problem solving

Suddenly reported an error after running,It doesn’t work whether it is uninstalled and then installed
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I suddenly thought about whether the version is too high or not

Update the specified version in the package manager, I will update to the next-level version and the problem will be solved.
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VScode Error: extension failed XHR Failed (Ubuntu Virtual Machine)

In the process of learning Linux embedded development, I encountered the following problems: after installing VS code in the Ubuntu virtual machine, it need to install appropriate plug-ins. At this point, vscode fails to expand XHR Failed, as shown in the figure:

And press the F1 key inside Vs code to open Developer:Toggle Developer Tools, enter the Console to query the reason, The error shown in the figure below appears (That is, Ubuntu system will point the domain name to the specified IP solve this problem):

After searching the Internet for many solutions, the following operations can solve the problem:

1. Open the hosts file in the Ubuntu terminal

sudo gedit /etc/hosts

2. Add the corresponding relationship between IP and domain name in the file as follows, and save the hosts file:

3. Restart Ubuntu.

[Solved] KDevelop Error: Failed to specify program to start

The build was successful, but the runtime encountered an error

Failed to specify program to start


    1. Check if Run/Current Launch Configuration is the current project
    2. If it is New Compiled Binary Launcher, select the current project
    3. If there is no current project name, go to the next option Configure Launches
    4. Click on the current project name
    5. AddCompiled Binary
    6. Go back to the first step and find that there are options, select
    7. Execute, run successfully