Im facing an error below, please tell what are the possible causes for this error java.lang.IllegalStateException: Backend Internal error: Exception during file facade code generation My kotlin version :

1.4.21

Android studio : 4.1.2 Note: Im not using jetpack compose

This is a compiler bug. Please check the full stacktrace, if it has a link to a specific file/line - try to comment out or modify that code and see if it compiles now.

In the stack trace , i didn't find any link to any project file/class. These are the main pointed files in the library class: CodegenUtil.kt:239 PackageCodegenImpl.java:78 CodegenFactory.kt:88 KotlinCodegenFacade.java:35 KotlinToJVMBytecodeCompiler.kt:647 K2JVMCompiler.kt:169 CLICompiler.kt:88 CLITool.kt:98 IncrementalJvmCompilerRunner.kt:371 NativeMethodAccessorImpl.java:62 DelegatingMethodAccessorImpl.java:43 UnicastServerRef.java:357 Transport.java:200 TCPTransport.java:573 CPTransport.java:834 KotlinTypeMapper.kt:109 MemberCodegen.java:655 PackageCodegenImpl.java:119