unable to write to flow.xml

Hello folks,
I am facing the following error
ISS 0026 9103 unable to write to flow.xml
when i try to save the changes i made to services,the above error is getting triggered.
I searched in the forum for the same error ,but i don’t find any useful solutions there,
please help me in this regard ASAP ,am using IS 6.0.1 build

Thanks in advance for ur kind replies.

Have you tried tweak things like reloading the package and do you have permissions to modify that service??If not copy/paste the same service and rename it try edit/save it…is that working?