Typescript errors handler

I've just a simple question:
In my Angular project all my files are `.ts`.

If there are some errors on my files, during build time In the `Log` area they are partially correct:
The file name is correctly highlighted but the row and column number is wrong, in fact for each error i get this sentence:
`You may need an appropriate loader to handle this file type`

There is a way to use the same error style for typescript files ?

thank you