(Kotlin) Backend Internal error: Exception during code generation

I was getting the same error. But in my case, I was writing unit test case and my test case name was too long. like this...

@Test
fun `check invocation of sendMessageWithImages on invocation of sendMessage when isUploadImageValid and reponse is success with no error`() { //test implemantation}

I find this culprit by thinking, what unusual, I am doing here, that we not supposed to do in real android programming. So think like this. If any given solution not work for you.
Thanks

This problem went away when I restarted Intellij. It happened for the following:
```
sealed class ApiException(error: String) : Exception(error) {
class UpdateException() :
ApiException("Failed to update")

class GetException() :
ApiException("Failed to get")
}

```

In my case the problem was related to Unit tests like Vishnu Singhal mentioned above. But not with the long test name, instead the problem was that I used quote sign in the test name like this:

fun `fetchUserData @ "by default"`()

The tests were running successfully on developers with MacOS, but for Windows users it was a problem with encoding probably. The solution was to remove quote signs from test name

Simply try with 'Invalidate Caches/Restart' if you face this during jetpack compose development.