Internal error has occurred

Help needed… in trying to get to my App on App inventor. It shows on MyProjects list, but when I click the name, it popups an error message: “An internal error has occurred. Report a Bug?”

I guess the problem is unknown extensions. So, how to get a rid of that, since not able to remove it by myself?

Make sure that you have not written any blocks using the extension that you want to remove.

Download your aia, open it with 7zip or winzip, go to assets, external_comps. In external_comps you can see the extensions that causing the problem. Delete it. Then upload aia file again

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Awesome, that did the trick. Thanks Dora, appreciate!

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