Farmville Co-Op farming Error- Job no longer exists or has ended

I've looked and looked all over the net for why there is this error and there just may be a reasonable explanation as to why you are seeing this when you try to join a friends co-op.


You need to share the jobs, not always be the boss of the co-op jobs.  It seems that farmville gives everybody a fair chance.  You can keep being the boss of jobs and than eventually you will need to find new neighbors to do co-op jobs with. 

How do I know this?  A friend of mine was always wanting to do co-op jobs but never wanted to be the helper.  After doing two jobs with him as the helper it seemed that this error kept happening.  When I would go into the co-op job list his job also did not show up on my end.  Anybody who never did a job with him before of course could join, although eventually, they also received the same error