A modern programming language that makes developers happier.

kotlinlang

Is this familiar to anyone ?
```Cause: java.lang.UnsupportedOperationException
	at java.base/java.util.Collections$1.remove(Collections.java:4714)
	at java.base/java.util.AbstractSet.removeAll(AbstractSet.java:176)
	at org.jetbrains.plugins.gradle.service.project.GradleProjectResolverUtil.doBuildDependencies(GradleProjectResolverUtil.```

Thats a bug in Intellij 2020.1 edition with kotlin multiplatform projects. You need to downgrade to 2019.x version to work on any multiplatform project.
<https://youtrack.jetbrains.com/issue/KT-38037?p=IDEA-236769>

but then how come I run on command line and it fails?

Oh sorry i have not seen you previous message

that’s ok. do you know how to solve this?

Yeah that's a known bug with 2020 intellij but not sure why you'd get it with gradle as well