cannot deploy .wsp

Jun 18, 2015 at 9:24 AM
I try to activate the solution but ....


This solution contains invalid markup or elements that cannot be deployed as part of a sandboxed solution. Solution manifest for solution 'b39b6187-5cfb-499e-8f4a-141c37bd3598' failed validation, file manifest.xml, line 11, character 4: The element 'Solution' in namespace '' has invalid child element 'RootFiles' in namespace ''. List of possible elements expected: 'ActivationDependencies, FeatureManifests' in namespace ''.

Troubleshoot issues with Microsoft SharePoint Foundation.

Correlation ID: 8dc6f747-65aa-4c89-bb21-9caff8d5926b

Date and Time: 18/6/2015 16:18:17
Jun 28, 2015 at 3:02 PM

this packages a not Sandboxed solutions. Sorry for that.