Type: Regression Bug
Affects Version/s: 7.0.0 M3
Fix Version/s: 7.0.0 M3
Steps to reproduce:
1. Start portal and login.
2. Admin > Content > press any content you like, I use WC.
3. Add a WC and publish, export the WC portlet.
4. Import the lar file of WC portlet which just exported.
Lar file could be imported and the WC could be seen.
A message like "An unexpected error occurred while uploading your file" displayed on screen, but no error message in console.
Note: Also could be reproduced on DM, MB and other portlets.