I created a TimerJob which is activated upon Feature activation. Because I didn't know better, I forgot to add an public default constructor and now I always get this exception: "Error occurred in deployment step 'Retract Solution': Lists.JobTimerReminder cannot be deserialized because it does not have a public default constructor." when I want to retract the solution (or try to disable the Feature, or even when I run 'Get-SPTimerJob' in the Management Shell). I cannot work on and redeploy my project (via Visual Studio) because it has to be retracted beforehand.

How can I get rid of this thing?

  • Run. *Uninstall-spsolution .... -force **Remove-spsolution .... - force. You can also do. Get-sptimerjob | where-object { $_.name -like "...*"} | % { $_.Delete } – user13186 Mar 18 '13 at 15:10
  • Thanks for the quick reply. But I get the error message from above on every single command you posted (I already tried Uninstall and Remove before). [...] is the Name of my custom Timerjob class – Kirschi Mar 18 '13 at 15:22
  • I even removed the whole SiteCollection and created a new one, but this Timerjob seems to be very stubborn... I also tried replacing the assembly via gacutil. I am very desperate atm... – Kirschi Mar 18 '13 at 15:50
  • Changing site collections won't help as timerjobs are stored @ the farm level. Look into what the default constructors are and try to use those as they should still be apart of the timerjob. – user13186 Mar 18 '13 at 16:24

Ok after trying ever single uninstall command, cleans, redeployments, Replacing the assembly with a fixed one via Gacutil, Several iisresets, deletion of site collection and so on, it finally worked after restarting my development machine. I think replacing the Assembly in the GAC did the job (+ restarting, otherwise it still wouldn't work).


Replacing the dll in GAC and IISRESET did the trick for me :-)

  • could you please explain which dll you meant? – Snickbrack Sep 9 '16 at 8:20
  • dll for the timer job – Unnie Sep 9 '16 at 8:22
  • is it also named like the job or the solution? – Snickbrack Sep 9 '16 at 8:23
  • it will have the project name not solution name – Unnie Sep 9 '16 at 8:39

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