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I get this error evertime I try installing extensions...

Error: Cannot locate file package.xml inside of extracted extension. Possibly extension was not extracted correctly. Check log for errors
Stuck? Not a problem. You can install extensions another way.

I have tried installing with the key, downloading, etc. Get the same error each installation method!

Is this easily corrected? I haven't tried FTP method yet.

Thanks in advance for any help with this.