Hi Julia,
as you have uploaded your application as an App Project application, you are not allowed to import an application with the same name via the Catalog again.
App Project apps vs. Catalog apps:
- App Project apps are user-specific. You can share those apps with a selected group of people. If you want to share a specific app version with all IEM users, you can publish (/unpublish) it to the Catalog.
- Catalog apps are not user-specific. That implies that every user in the IEM can see your uploaded apps in the Catalog tab. Catalog apps can be installed from IE Hub, uploaded via the IE App Publisher, IE Control (IECTL) or directly via the Import Application button in the IEM UI.
You need to consider your app type when uploading your app the first time.