Error occurred in deployment step 'Add Solution': Property 'SiteUrl' contains an invalid URL

You encounter this error when trying to deploy a BCS solution package in a different environment than where it was developed and tested.
Cause: in the feature xml there is this property which is set with your previous site url and it will fail in the new environment.

Resolution

Know where you have to deploy the solution, get the new site url and update the feature xml and build new solution package and use it in the new environment.