tests/cases/conformance/Symbols/ES5SymbolProperty6.ts(2,6): error TS2585: 'Symbol' only refers to a type, but is being used as a value here. Do you need to change your target library? Try changing the 'lib' compiler option to es2015 or later. tests/cases/conformance/Symbols/ES5SymbolProperty6.ts(5,9): error TS2585: 'Symbol' only refers to a type, but is being used as a value here. Do you need to change your target library? Try changing the 'lib' compiler option to es2015 or later. ==== tests/cases/conformance/Symbols/ES5SymbolProperty6.ts (2 errors) ==== class C { [Symbol.iterator]() { } ~~~~~~ !!! error TS2585: 'Symbol' only refers to a type, but is being used as a value here. Do you need to change your target library? Try changing the 'lib' compiler option to es2015 or later. } (new C)[Symbol.iterator] ~~~~~~ !!! error TS2585: 'Symbol' only refers to a type, but is being used as a value here. Do you need to change your target library? Try changing the 'lib' compiler option to es2015 or later.