Workspace setup failed - Could not move temporary workspace (MCreator 2025.1, Forge 1.20.1)

Started by DT13 on

Topic category: Troubleshooting, bugs, and solutions

Joined May 2025
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Workspace setup failed - Could not move temporary workspace (MCreator 2025.1, Forge 1.20.1)

"Hello everyone,

I'm encountering a persistent issue with MCreator and would greatly appreciate any help. I'm trying to create a mod for Minecraft [Your Minecraft Version], but I keep getting a 'Workspace setup failed' error that prevents me from working.

When I attempt to open my existing workspace or create a new one, I receive the 'Workspace setup failed' message, and the logs show the following error:

Executing Gradle synchronization tasks
Build info: MCreator [Your MCreator Version], forge-[Your Forge Version], 64-bit, [Amount of RAM MCreator shows], Windows [Your Windows Version], JVM [Your JVM Version], JAVA_HOME: [Your JAVA_HOME Path], started on: [Date and Time of Error]

FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project '[Your Mod Name]'.
> A build operation failed.
  Could not move temporary workspace ([Path to temporary workspace]) to immutable location ([Path to immutable location])
  > Could not move temporary workspace ([Path to temporary workspace]) to immutable location ([Path to immutable location])
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.
CONFIGURE FAILED in [Time]s
org.gradle.tooling.BuildActionFailureException: The supplied phased action failed with an exception.
... (rest of the error log) ...

I have already tried a few troubleshooting steps based on online suggestions and advice:

  • Deleting the gradle folder in my .mcreator directory.
  • Running MCreator as administrator.
  • Ensuring I have enough free disk space.

Unfortunately, the problem persists, and I'm unable to start working on my mod. Has anyone else experienced this issue or have any suggestions on how to resolve it? Any help would be greatly appreciated.

Thank  you in advance!"