NestJS controller not mapped
If you have already tried everything else and nothing worked, try deleting the dist folder. That's what worked for me.
Did you put the controller in the module?
@Module({ controllers: [AuthenticationController],})export class AppModule {}
Finally found out that some packages from NestJS had version 6 and 7. So they propably interrupted each other. An indicator was this flood of warnings:
After running nest update -f every controller was mapped as it was supposed.