Project artifacts created in Unwired WorkSpace version 1.2 must be migrated to version 1.5.x, before you upgrade Unwired WorkSpace to version 2.0.
If your Unwired WorkSpace was upgraded from version 1.2 to 1.5.5, without migrating projects to version 1.5.x, you must migrate the projects manually, before you upgrade to Unwired WorkSpace version 2.0.