Does not work in SharePoint Online (2013)


Trying to upload as a solution to Office 365 gives:

Sorry, something went wrong

This solution contains invalid markup or elements that cannot be deployed as part of a sandboxed solution. Solution manifest for solution '3653908c-2d48-4ea3-bf29-efcbe5c9d7ff' failed validation, file manifest.xml, line 10, character 4: The element 'Solution' in namespace 'http://schemas.microsoft.com/sharepoint/' has invalid child element 'TemplateFiles' in namespace 'http://schemas.microsoft.com/sharepoint/'. List of possible elements expected: 'FeatureManifests, ActivationDependencies' in namespace 'http://schemas.microsoft.com/sharepoint/'.

I guess I shouldn't be surprised! Be nice if it did work though! Especially as the Office 365 Security Group Admin web page has a bug that limits the entries to 500 max. - and only display's 4 1/2 lines at a time!