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I have been working on a project for a while now and on one day I tried to run my project in debug mode and I got this error message:
Failed to find Premain-Class manifest attribute in C:\Users\myuser\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlinx\kotlinx-coroutines-core-metadata\1.3.8-native-mt-1.4.0-rc\5b54677a19ebb20ec7dac0d9e4dfc806df327df\kotlinx-coroutines-core-metadata-1.3.8-native-mt-1.4.0-rc.jar
Error occurred during initialization of VM
agent library failed to init: instrument
I tried
.gradle folder from the project and my HOME dirbut nothing helped.
What can I do to solve this? I did no code change that could make this happen, it was working a day ago.
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To solve this, simply remove the jar of the debugged module from all modules' dependencies in the Project Structure. If you do not know which modules have the debugged module jar as dependencies, you can use some tools (Eg. Sublime Text, bash, ...) to search for the module name which is stored in Intellij *.
This is a bug in the new Kotlin 1.4 coroutine debugger: https://youtrack.jetbrains.com/issue/KT-41175. As a workaround please do in Intellij IDEA: File | Settings (Preferences) | Build, Execution, Deployment | Debugger | Data Views | Kotlin | Disable coroutine agent.
The coroutine debugger is going to be disabled in MPP projects by default in Kotlin 1.4.10.
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