Error Deploying Solution. The Remote server Returned an Error 401 Unauthorized
This issue is caused when authentication to the Forms / Foundation site has expired.
You will need to re-authenticate with the Forms / Foundation
To do this:
In Composer, open the Deployment Profile and Edit Variants
1. Change your Foundation site to a different URL.
2. Hit GO.
3. Change back to the correct URL.
4. Hit GO.
5. You will then be prompted for your credentials and should then be authenticated.