IntelliJ compiling shows errors

Question

I have the following error:

But the problem is all the things that "don't exist" actually exist. Here:

I've tried the following:

• Restart IntelliJ (multiple times)
• Double check all the imports and package names.
• Removed all imports and reimported them.
• Invalidate caches/restart.

None of this has solved my problem. The weird this was, I ran this code. It only errors now, and all I've done was change my build.gradle . Could that be the cause? Let me know if you need my code.

Answer 1

解决了这个问题，我不知道我做了什么或我是怎么做的，它刚刚开始工作。