Hello! I don't know if you still looking for a solution. I've got a similar issue earlier and in my case the problem was that Windows locked the program archive. You can check it by right clicking the file and select properties. In the window's bottom right corner there is a checkbox that says "Unblock file" or something similar depending on your OS. If you not unblock the original archive (.zip, .7z etc.) before decompressing, all of the unpacked files will inherit the property and you should unblock them one by one. If you did not made any modification on the original project, then it's easier to unblock first and unpack it again. Hope this helped.
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