There's no way to give you a fix for this, because we don't know what the problem is.
The most likely answers are that you have not given the correct permissions to the directories involved, or that the directory is owned by the wrong user. Check that first.
If that is not the problem, then the next test is to log in as the user that Jira will run as, run a command shell (cmd), go to the directory mentioned and try a simple command to create a file. That should give you an error message that tells you what the problem is.
I have multiple projects that use variations of the same base workflow. The variations depend on the requirements of the project or issue type. The variations mostly come in the form of new statuses ...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events