# "IllegalArgumentException: argument type mismatch" when running inside a GradleBuild task

**URL:** <https://discuss.gradle.org/t/illegalargumentexception-argument-type-mismatch-when-running-inside-a-gradlebuild-task/38372>\
**Category:** Help/Discuss\
**Created:** [November 26, 2020, 10:48am UTC](https://discuss.gradle.org/t/illegalargumentexception-argument-type-mismatch-when-running-inside-a-gradlebuild-task/38372 "2020-11-26T10:48:40Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![F43nd1r](https://avatars.discourse-cdn.com/v4/letter/f/e19adc/32.png) [@F43nd1r](https://discuss.gradle.org/u/F43nd1r)\
**Post date:** [November 26, 2020, 10:48am UTC](https://discuss.gradle.org/t/illegalargumentexception-argument-type-mismatch-when-running-inside-a-gradlebuild-task/38372/1 "2020-11-26T10:48:40Z")

</div>

My release process fails with this weird “IllegalArgumentException: argument type mismatch” in a task that normally runs fine.  
My guess is that it fails because it is run inside a `GradleBuild` task, but I don’t understand why that is an issue.  
Can I fix this somehow? Am I doing something wrong?

Build Scan: [https://scans.gradle.com/s/xptwsho67p57y](https://scans.gradle.com/s/xptwsho67p57y)  
Project: [https://github.com/ACRA/acra/tree/ca154fdeaf2da03ac687843d9ebf26e641763bc0](https://github.com/ACRA/acra/tree/ca154fdeaf2da03ac687843d9ebf26e641763bc0)  
Release plugin which creates the GradleBuild: [https://github.com/F43nd1r/gradle-release/tree/6f1536aa07a7973300e24710c1b5a156d8a17c5b](https://github.com/F43nd1r/gradle-release/tree/6f1536aa07a7973300e24710c1b5a156d8a17c5b)