Build and Launch errors. Need Help!

We're running a summer camp using MCreator, and nearly every student has had build or launch errors of various kinds. They all use flash drives as the directory for their project and the projects often fail to build the workspace or fail to launch into the built-in Minecraft. However, when we use the local project autosave file stored in the User folder on the C drive it seems to work fine. We want them to be able to take their projects home on the drives or email it, but we can't get those files to work when we import them or try to load the project file. I tried using exported zips and copy/pasting the entire project folder and opening the project folder, but couldn't get either of them to build and launch reliably.

Full log:

Executing Gradle task: runClient
Build info: MCreator 2021.1.18117, forge-1.16.5, 64-bit, 7934 MB, Windows 10, JVM 1.8.0_275, JAVA_HOME: C:\Program Files\Pylo\MCreator\jdk
> Task :compileJava UP-TO-DATE
> Task :processResources UP-TO-DATE
> Task :classes UP-TO-DATE
> Task :downloadMcpConfig
> Task :extractSrg UP-TO-DATE
> Task :createSrgToMcp FAILED
FAILURE: Build failed with an exception.
* What went wrong:
A problem was found with the configuration of task ':createSrgToMcp' (type 'GenerateSRG').
> File 'D:\FinalTest\build\extractSrg\output.srg' specified for property 'srg' does not exist.
* 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
Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.8.1/userguide/command_line_interface.html#sec…
BUILD FAILED in 3s
5 actionable tasks: 2 executed, 3 up-to-date
BUILD FAILED
Task completed in 5 seconds