Animation - error - fieldview export
 

I am using animation while working with DPM. For animation, I was saving frame after every two time steps. I got it done. Now I need to change a parameter and again start solution. But after the first times step I get this error message.

Error: error: fieldview export: unable to open for append Error Object: ()

I deactivated animation but got the same error. It stopped solution also. Advise me.

- Prasad