Dears,

I've been seeing this Upgrade Error status intermittently in our SharePoint Farm and the fact is there isn't anything which needs an upgrade in reality.

Also, I found the solution that running, Get-SPProduct -Local  in the server which shows the status fixes this issue but this would again show up in next couple of days.

A related error in the event viewer would be,

"The Execute method of job definition Microsoft.SharePoint.Administration.SPProductVersionJobDefinition (ID a07e8822-482e-4c62-b07d-4911220f3ead) threw an exception. More information is included below.Collection was modified; enumeration operation may not execute."

Can someone pls help me if you have already come across this and have a permanent fix ? Thanks!

BR,

Hi Trevor,

wasn't a permanent solution... before trying out Get-SPProduct -Local, I did try PSConfig but the error status just back on frame after few days.. 

By any chance, would this be due to the timer job error ? If so what we could do to address it ? 

thanks!

BR,

Mukesh