# No dependencies on TypeScript code are currently allowed Rule ``arkts-no-ts-deps`` **Severity: error** Currently, the codebase implemented in the standard TypeScript language must not depend on ArkTS through importing the ArkTS codebase. Imports in reverse direction are supported. ## TypeScript ``` // app.ets export class C { // ... } // lib.ts import { C } from "app" ``` ## ArkTS ``` // lib1.ets export class C { // ... } // lib2.ets import { C } from "lib1" ```