Hello Trying to adopt JS target and got compiler internal ex

Question

Hello Trying to adopt JS target and got compiler internal exception in thread I can t share project for now so I need to solve it by myself May be there are any suggestions how to find reason for such cases

PHondogo · Answer

```java lang IllegalStateException IrTypeParameterSymbolImpl is unbound Signature null at org jetbrains kotlin ir symbols impl IrBindableSymbolBase getOwner IrPrivateSymbolBase kt at org jetbrains kotlin ir types IrTypeSystemContext$DefaultImpls supertypes IrTypeSystemContext kt 171 at org jetbrains kotlin ir types IrTypeSystemContextImpl supertypes IrTypeSystemContext kt 645 at org jetbrains kotlin ir types IrTypeSystemContextWithAdditionalAxioms supertypes IrTypeCheckerUtils kt at org jetbrains kotlin types AbstractTypeChecker collectAllSupertypesWithGivenTypeConstructor AbstractTypeChecker kt 906 at org jetbrains kotlin types AbstractTypeChecker findCorrespondingSupertypes AbstractTypeChecker kt 687 at org jetbrains kotlin types AbstractTypeChecker isSubtypeOfForSingleClassifierType AbstractTypeChecker kt 377 at org jetbrains kotlin types AbstractTypeChecker completeIsSubTypeOf AbstractTypeChecker kt 284 at org jetbrains kotlin types AbstractTypeChecker isSubtypeOf AbstractTypeChecker kt 244 at org jetbrains kotlin types AbstractTypeChecker isSubtypeOf$default AbstractTypeChecker kt 234 at org jetbrains kotlin types AbstractTypeChecker isSubtypeForSameConstructor AbstractTypeChecker kt 478 at org jetbrains kotlin types AbstractTypeChecker isSubtypeOfForSingleClassifierType AbstractTypeChecker kt 381 at org jetbrains kotlin types AbstractTypeChecker completeIsSubTypeOf AbstractTypeChecker kt 284 at org jetbrains kotlin types AbstractTypeChecker isSubtypeOf AbstractTypeChecker kt 244 at org jetbrains kotlin types AbstractTypeChecker isSubtypeOf$default AbstractTypeChecker kt 234 at org jetbrains kotlin types AbstractTypeChecker equalTypes AbstractTypeChecker kt 263 at org jetbrains kotlin ir overrides IrOverridingUtilKt isOverridableByWithoutExternalConditions IrOverridingUtil kt 703 at org jetbrains kotlin ir overrides IrOverridingUtil isOverridableBy IrOverridingUtil kt 627 at org jetbrains kotlin ir overrides IrOverridingUtil extractAndBindOverridesForMember IrOverridingUtil kt 250 at org jetbrains kotlin ir overrides IrOverridingUtil generateOverridesInFunctionGroup IrOverridingUtil kt 232 at org jetbrains kotlin ir overrides IrOverridingUtil buildFakeOverridesForClass IrOverridingUtil kt 173 at org jetbrains kotlin backend common overrides FakeOverrideBuilder$buildFakeOverrideChainsForClass$2$1 invoke FakeOverrides kt 125 at org jetbrains kotlin backend common overrides FakeOverrideBuilder$buildFakeOverrideChainsForClass$2$1 invoke FakeOverrides kt 124 at org jetbrains kotlin backend common serialization signature PublicIdSignatureComputer inFile IdSignatureSerializer kt 45 at org jetbrains kotlin backend common serialization signature IdSignatureSerializer inFile IdSignatureSerializer kt 215 at org jetbrains kotlin backend common serialization DeclarationTable inFile DeclarationTable kt 62 at org jetbrains kotlin backend common overrides FakeOverrideBuilder buildFakeOverrideChainsForClass FakeOverrides kt 124 at org jetbrains kotlin backend common overrides FakeOverrideBuilder provideFakeOverrides FakeOverrides kt 281 at org jetbrains kotlin backend common overrides FakeOverrideBuilder provideFakeOverrides FakeOverrides kt 291 at org jetbrains kotlin backend common serialization KotlinIrLinker postProcess KotlinIrLinker kt 226 at org jetbrains kotlin ir backend js KlibKt getIrModuleInfoForKlib klib kt 305 at org jetbrains kotlin ir backend js KlibKt loadIr klib kt 242 at org jetbrains kotlin ir backend js CompilerKt compile compiler kt 55 at org jetbrains kotlin ir backend js CompilerKt compile$default compiler kt 39 at org jetbrains kotlin cli js K2JsIrCompiler$Ir2JsTransformer lowerIr K2JsIrCompiler kt 103 at org jetbrains kotlin cli js K2JsIrCompiler$Ir2JsTransformer makeJsCodeGenerator K2JsIrCompiler kt 126 at org jetbrains kotlin cli js K2JsIrCompiler$Ir2JsTransformer compileAndTransformIrNew K2JsIrCompiler kt 134 at org jetbrains kotlin cli js K2JsIrCompiler doExecute K2JsIrCompiler kt 391 at org jetbrains kotlin cli js K2JSCompiler doExecute K2JSCompiler java 181 at org jetbrains kotlin cli js K2JSCompiler doExecute K2JSCompiler java 72 at org jetbrains kotlin cli common CLICompiler execImpl CLICompiler kt 104 at org jetbrains kotlin cli common CLICompiler execImpl CLICompiler kt 48 at org jetbrains kotlin cli common CLITool exec CLITool kt 101 at org jetbrains kotlin daemon CompileServiceImpl compile CompileServiceImpl kt 1523 at jdk internal reflect GeneratedMethodAccessor91 invoke Unknown Source ```

Youssef Shoaib [MOD] · Answer

Looks like there s an issue with a library that you re using Not entirely sure what can be done about that but maybe try and see if you can narrow down what library it is The compiler tries to load a Klib deserialize it into Ir then ends up failing because it does some type checking on that library and it has some missing information about a type parameter

PHondogo · Answer

Thanks for explanation I ll try to narrow

PHondogo · Answer

I ve found the cause compilation fails for JS target ```interface TestCache suspend fun V Any> get key K creator K > V V interface Key fun test object TestCache This is the cause If make class implementing TestCache and instantiate it then it is ok For jvm and Android targets both variants compile fine override suspend fun V Any> get key K creator K > V V return null ``` Probably it is a bug in compiler for JS target

PHondogo · Answer

Filed an issue <https youtrack jetbrains com issue KT 63372 Compiler internal error for JS IR target>