error TS1204: Cannot compile modules into 'commonjs', 'amd', 'system' or 'umd' when targeting 'ES6' or higher.


!!! error TS1204: Cannot compile modules into 'commonjs', 'amd', 'system' or 'umd' when targeting 'ES6' or higher.
==== tests/cases/compiler/es6ModuleWithModuleGenTargetCommonjs.ts (0 errors) ====
    export class A
    {
        constructor ()
        {
        }
    
        public B()
        {
            return 42;
        }
    }