Feature/better import errors

| Q                   | A
| ------------------- | ---
| Bug fix?            | No
| New feature?        |No
| BC breaks?          |No
| Tests pass?         |?
| Scenarios pass?      |?
| Checkstyle issues?  |No
| Changelog updated?  |No
| Fixed tickets       |
| Doc PR              |

Import errors  are now nicely displayed.