devenv.exe command line execution mode is not working as expected

Mao 0

Hello! I was using devenv.exe command mode to compile the whole Unreal Engine source code. As the VS doc says, I constructed the following bat code:

"XXXXXX\devenv.exe" "xxxxxx\UE5.sln" /Rebuild "Development Editor|Win64" /Out "XXXXX/Rebuild.log"

I use the "/Rebuild" switch to recompile the whole solution, and that works well. However, when I open the VS IDE and run "Build Solution" after previous "Rebuild", there are build actions which means that there are changes cause an incremental build. But I did not touch any code which makes this weird. Can anyone give a workaround or solution to fix this. Many thanks.

Anna Xiu-MSFT 29,931 Reputation points Microsoft Vendor

2024-11-18T07:17:39.5033333+00:00

Hello, could you share us the VS doc you refer to?

Please check if the build configuration settings are consistent between the command line and the VS IDE.

Besides, to better investigate your issue, you can report it in Unreal Engine Community forum.
Mao 0 Reputation points

2024-11-18T07:32:26.5266667+00:00

@Anna Xiu-MSFT Thank you for your kind reply, Here is the link https://learn.microsoft.com/en-us/visualstudio/ide/reference/rebuild-devenv-exe?view=vs-2022. According to the doc, the "/Rebuild" switch does the same thing as the Rebuild Solution menu command within the IDE. I think that using devenv.exe command line should rebuild the whole solution, and if I didn't change any code, the next Build should not perform any build actions.
Anna Xiu-MSFT 29,931 Reputation points Microsoft Vendor

2024-11-19T10:27:50.0933333+00:00

Hello, for Build Solution, it compiles only those files and components that have changed since the most recent build.

Maybe you can see the rebuild files in Output window by setting Tools > Options > Projects and Solutions > Build And Run > MSBuild project build output verbosity option to Diagnostic.
Mao 0 Reputation points

2024-11-20T01:01:08.72+00:00

I found a workaround for this. Simply Clean befor Build and not using Rebuild switch. And I tested that when Rebuild from the IDE, this will still be build actions during next build. So there might be some "problems" with the Unreal Engine build system? Anyway, Thanks again for your kind help.
Anna Xiu-MSFT 29,931 Reputation points Microsoft Vendor

2024-11-20T12:19:03.6466667+00:00

Thanks for your feedback. To confirm it, I recommend you report it in Unreal Engine Community forum.

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