OT: ClickOnce mysteries

OT: ClickOnce mysteries

Old forum URL: forums.lhotka.net/forums/t/5185.aspx


ajj3085 posted on Friday, August 01, 2008

Hi,

I'm having a very weird problem.  Some users are getting errors and I can't figure out why.  One is a serialization error that only occurred for one user in a particular spot, and for another user in a different spot.  Yesterday, another user encountered a problem running a report as well.. and no one else had the same problem.  Everyone is on the same version of my app and .Net framework.  Even XP / Vista service pack levels.  I just experienced the same error as the user did yesterday as well.

The new error is this:
Message: InvalidCastException: Unable to cast object of type 'System.Object[]' to type 'MyCompany.Quoting.DocumentList'.\r\nStack trace:    at MyCompany.Sales.MainForm.LoadDocumentsForPrinting(Object sender, DoWorkEventArgs e)
   at System.ComponentModel.DoWorkEventHandler.Invoke(Object sender, DoWorkEventArgs e)
   at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
   at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)\r\nSource: Sales

Again, the fix was to uninstall and reinstall the appliction from the website.. no other changes needed.

Has anyone encountered anything like this before?  The other error is a SerializationException... so it's not the particular exception that is the worry... just that a simple un-install re-install seems to fix the issue, and that now its happened to four of us.  The only thing in common is that the errors always happen on a background thread.

Thanks
Andy

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