tar: invalid tar magic

The error message "invalid tar magic" usually occurs when trying to extract or open a tar archive that is corrupted or not in the correct format.

Some possible reasons for this error are:

- The file extension may not be ".tar" or the file may not be a tar archive at all.
- The tar archive may have been corrupted during transfer or storage.
- The tar archive may have been created with a different version or program than the one you are using to extract it.

To resolve this error, you can try the following:

- Check that the file extension is correct and that the file is a tar archive.
- Try downloading the archive again or transferring it from a different source.
- Try using a different version or program to extract the tar archive.