How do I fix the Internal compiler error

I cant play my game my error says Internal compiler error. See the console log for more information. output was:error CS2015: Source file Assets/my lost world.unity_Data/Managed/Assembly-CSharp-firstpass.dll’ is a binary file and not a text file
can you help me

While I’ve never had this problem before, here is what I would trh:

Setting your project settings to use meta files instead of cached files. To do this open Unity and go to Edit > Project Settings > Editor. In the Inspector panel, choose Meta Files as the Version Control Mode. Close Unity.

Next, go to your project folder using Windows Explorer and delete everything in the folder except for the Assets and ProjectSettings (yes, delete Library, Temp, and all the loose CSharp files). Ensure to make a copy of this before you delete it just in case.

Then, re-open your project and try to compile. My thought is perhaps that .dll has a problem, and by deleting and forcing Unity to re-generate these files might solve your issue.

You just have to lick in the “Asset” tab in top of unity and select “Reimport All”