I’ve just completed the Mindsphere learning path. I’m using a Mindsphere ‘start for free' tenant, Mendix Studio Pro 8.15.1 and the free sandbox cloud. When i create a new app, the first deployment works fine, but i’m not able to update it. i’ve tried to deregister, delete from Mindsphere, nothing works. After i hit the run button, and after quite a long processing, a popup says “unable to create application. Visit the Developer Portal to see the status of your app” The build output looks like normal : (...) BUILD SUCCEEDED [+ 46] [BUILD xxxxxxxxxxxxx/trunk/9 -> 9794426. State: Running] Uploading to cloud portal, using 7.23 method [+ 47] [BUILD xxxxxxxxxxxxx/trunk/9 -> 9794426. State: Running] Creating tag.. [+ 47] [BUILD xxxxxxxxxxxxx/trunk/9 -> 9794426. State: Running] Skipped the creation of tag '18.104.22.168'; the tag already exists)
Looks like that this is a Mendix deployment problem and has nothing todo with your changes or MindSphere.
Try to unlink your app in the app environments settings and to do a fresh deployment.
If this is not helping, I fear you have to open a support ticket