Working on a Mac, I created an archive from a directory of problems
tar -zcvf CalculusET3EWebWork2016.tgz CalculusET3EWebWork2016
and tried to upload using the file manager but the following error message:
Can't unpack 'CalculusET3EWebWork2016.tgz': command returned signal 18446744073709551487
The funny thing is that I have archived this directory before and uploaded it by the same method, and it has worked in the past.
What does the message mean?
Note: I should point out that I can unpack the archive by logging in to the server and running
sudo tar -xzvf CalculusET3EWebWork2016.tgz
and then all is well.
- There may be more information in the apache error log, possibly including a more meaningful error message.
- It could be a permissions issue. Make sure that the course templates directory is writeable by the web server.
- Are there any file names with special characters? This sometimes causes problems.