tests/cases/compiler/incompatibleExports2.ts(4,5): error TS2309: An export assignment cannot be used in a module with other exported elements. ==== tests/cases/compiler/incompatibleExports2.ts (1 errors) ==== declare module "foo" { export interface x { a: string } interface y { a: Date } export = y; ~~~~~~~~~~~ !!! error TS2309: An export assignment cannot be used in a module with other exported elements. }