I have used "arc diff --create --cl " successfully few times but since Tuesday I have been getting this error continuously. The usage and error (highlighted in red) are pasted below and the Differential Review does not get created.
[root@sg-sme-1 /sc/src/sm/trunk/src/scripts]# arc diff --create --cl zapi_sloc
Select changelist from below:  Default  bug_60863  zapi_sloc Pick changelist by number : 2
No lint engine configured for this project.
Running unit tests…
No unit test engine is configured for this project.
Usage Exception: There are no changes to generate a diff from!
I can confirm that there were changes in my working copy which the tool is somehow missing.
Kindly take a look and let me know if I’m missing anything or if this is a tool issue.