Unknown file extension .ts for index.ts

- Typeerror unknown file extension .ts for index.ts
- Typeerror err_unknown_file_extension unknown file extension .ts for /app/index.ts
- Typeerror err_unknown_file_extension unknown file extension .ts for src/index.ts
- Unknown file extension .ts for index.spec.ts
- Unknown file extension .ts
- Unknown file extension .ts for /src/index.ts