tests/cases/conformance/parser/ecmascript6/ComputedPropertyNames/parserComputedPropertyName15.ts(1,31): error TS1170: Computed property names are not allowed in type literals. ==== tests/cases/conformance/parser/ecmascript6/ComputedPropertyNames/parserComputedPropertyName15.ts (1 errors) ==== var v: { [e: number]: string; [e]: number }; ~~~ !!! error TS1170: Computed property names are not allowed in type literals.