tests/cases/conformance/externalModules/foo1.ts(1,1): error TS1148: Cannot compile external modules unless the '--module' flag is provided. tests/cases/conformance/externalModules/foo2.ts(2,14): error TS1005: ';' expected. tests/cases/conformance/externalModules/foo2.ts(2,15): error TS2304: Cannot find name 'x'. ==== tests/cases/conformance/externalModules/foo2.ts (2 errors) ==== import foo1 = require('./foo1'); export = foo1.x; // Error, export assignment must be identifier only ~ !!! error TS1005: ';' expected. ~ !!! error TS2304: Cannot find name 'x'. ==== tests/cases/conformance/externalModules/foo1.ts (1 errors) ==== export function x(){ ~~~~~~~~~~~~~~~~~~~~ return true; ~~~~~~~~~~~~~ } ~ !!! error TS1148: Cannot compile external modules unless the '--module' flag is provided.