Tag Archives: Unity 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] Unity Error: Assertion failed on expression: ‘m_ErrorCode == MDB_MAP_RESIZED

Unity报错Assertion failed on expression: ‘m_ErrorCode == MDB_MAP_RESIZED

Assertion failed on expression: ‘m_ ErrorCode == MDB_ MAP_ RESIZED || ! HasAbortingErrors()’

Asset database transaction committed twice!

Assertion failed on expression: ‘errors == MDB_ SUCCESS || errors == MDB_ NOTFOUND’

The three errors are reported all the time without code prompt; The reason is that the Unity license has expired;

Solution: Restart Unity, open Unity Hub and reactivate the license; Re-open the project

[Solved] Unity Error: Deterministic compilation failed. You can disable Deterministic builds in Player Settings



Unity error: deterministic compilation failed You can disable deterministic builds in player settings
this error was encountered when opening the old version of the project with the new version of unity



1. Click Edit –> Project Settings

2. Click play –> Pull down to find Use Deterministic Compilation, then uncheck and restart unity

3. Done!

[Solved] Unity Error: Got null handle from IDXGIResource::GetSharedHandle


Unity reports an error when playing the video: got null handle from idxgiresource:: getsharedhandle, which shows that the running program cannot play the video, but the sound can be heard. This problem is likely to be related to AMD’s unique display. If this error occurs, you can try the following solutions.

This solution takes the windows platform as an example, and other platform solutions are similar.


First of all, ensure the normal operation of the computer amd display driver, and ensure that unity automatically calls amd display. (if unity does not automatically call amd graphics card, you can add unity program at amd graphics card control panel.)

Open Edit - project settings in unity, select player , select PC platform, uncheck auto graphics APIs for windows in the options of other settings , and add Vulkan at graphics APIs for windows below the options, Delete or adjust the default direct3d11 to Vulkan , as shown in the following figure. After adjustment, you will be prompted to restart the unity editor. You can restart it. If you try to run again, you will not report an error.

Unity Error:InvalidCastException: Cannot cast from source type to destination type.

when I use system.data.dll to parse excel table; Encountered this error:

wrong positioning:
this is an excel problem; The error is reported in: excel reader. Asdataset() is due to the problem of Excel format;

you can solve this problem by setting the cell format as text in Excel table;

Reference website:
Yusong Momo cross platform analysis Excel