Nothing happens when I click Desura, clicking force update works but that does not fix the problem.
EDIT: I know am getting this error: Details: Failed to execute child process "/home/neil/Downloads/desura" (Permission denied)
check the ownership of the file.
You should be the owner of the file and have execute permission
By default, files downloaded on Ubuntu do not have execute permissions enabled. One of the reasons for this is to help protect you from malicious programs (or non-malicious programs that you just don't want to run by accident).
If you're sure
Command Line Way
Run this command in a terminal:
You probably already own the file, so you should not need to run that command with
In Nautilus (the file browser), find
Click the Permissions tab, and check the box labeled Allow executing file as program. Then click Close.