Any time you want to upload files into your Extension version in the Marketplace webpage, those files are verified in order see if the Extension is well defined or not.
The following errors may occur if something is not well defined in your Extension:
||It was not possible to decompress zip file.
||The only supported file extension for the UserControl file is ".zip". Other formats like ".rar", ".gz", etc are not supported.
||Main file not found.
||Probably the ".dll" file is not inside the compressed file you have uploaded. Also this error may occur when you do not have any items in your version.
||Version already exists with that name( "%VersionName" ).
||Try changing the "Product version" property of your ".dll" file because you already have a Version with the same name.
For any question or support please contact us.