Re: Failed to create WSP in "Save site as a template"

Hi koenig1985,

Thanks for the clarification. Actually when you create a template from an on-premises development SharePoint site collection, some specific features in the template may not be supported in SharePoint Online. You may try to manually edit the WSP solution. Here's an article for your reference:

http://community.office365.com/en-us/blogs/the_grid/archive/2012/04/18/how-to-edit-your-sharepoint-wsp-s-grid-user-post.aspx

Best Regards,
Reken Liu