This error will appear at the bottom of Unity if an upload failed.
Because the error could be a number of different tools or problems, please post a screenshot in the Unity Help section of the Community page.
To post the correct screenshot, please click on the Console tab located in Unity. Once in the window, you should see a button labeled "Clear" click this button and check for RED error codes. Please take a screenshot of the following error and post it within the area mentioned above.
For an attempt to fix the issue, you can find the same error codes and delete the Editor folders and/or the files causing problems. This fix only applies to the most common Prefab error among users. If you are unsure of what error you have, please provide a screenshot in the Unity help section of the Community page. It is safe to delete the Editor Folder(s) for the tools within the project as most should not effect or damage the model in any way.
Because the error could be a number of different tools or problems, please post a screenshot in the Unity Help section of the Community page.
To post the correct screenshot, please click on the Console tab located in Unity. Once in the window, you should see a button labeled "Clear" click this button and check for RED error codes. Please take a screenshot of the following error and post it within the area mentioned above.
For an attempt to fix the issue, you can find the same error codes and delete the Editor folders and/or the files causing problems. This fix only applies to the most common Prefab error among users. If you are unsure of what error you have, please provide a screenshot in the Unity help section of the Community page. It is safe to delete the Editor Folder(s) for the tools within the project as most should not effect or damage the model in any way.