The blocks area did not load properly. Changes to the blocks for screen 4661893282004992_Screen1 will not be saved

MIT App Inventor Help
1

My app worked perfectly, but after copying elements and blocks from other project, this error happened.
NOA (1).aia (1.0 MB)

2

Well something went really wrong when you copied your blocks etc..

NOA
NOA2152×3576 798 KB

Try this one NOA1.aia (1.0 MB)

3

Yes, it seems so. Thank you very much.

4

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