UE 5.6 project creation fails on Default.rc2 / rc.exe — exit code -1

General Feedback & Requests
, , , ,
4

This is almost the same issue — my rc.exe was taking a very long time and sometimes even getting stuck.

In my case, the fix worked by editing <PROJECT_DIR>\Saved\UnrealBuildTool\BuildConfiguration.xml

<?xml version="1.0" encoding="utf-8" ?>
<Configuration xmlns="https://www.unrealengine.com/BuildConfiguration">
    <BuildConfiguration>
        <bAllowUBAExecutor>false</bAllowUBAExecutor>
    </BuildConfiguration>
</Configuration>

By the way, I also tried modifying only the WindowsSdkVersion, but it didn’t work:

<WindowsPlatform>
    <WindowsSdkVersion>10.0.22621.0</WindowsSdkVersion>
</WindowsPlatform>

I also tested adding the config to
%APPDATA%\Unreal Engine\UnrealBuildTool\BuildConfiguration.xml,
but that didn’t work either. It seems UE5 may be using some cached configuration.

Thx to everyone above for the helpful replies.