I had this issue and it was due to have spaces in the path that nikki.sh was run from. The fix is here:
https://bugs.launchpad.net/nikki/+bug/1242179
I had this issue and it was due to have spaces in the path that nikki.sh was run from. The fix is here:
https:/ /bugs.launchpad .net/nikki/ +bug/1242179