December 8, 20178 yr Hallo friends of Simulation I bought 737 Immersion at simmarket today. After installation came the following message: Installation Error: System.InvalidOperationException: The collection has been changed. The enumeration process may not be able to run. at System.ThrowHelper.ThrowInvalidOperationException (ExceptionResource resource) at System.Collections.Generic.List`1.Enumerator.MoveNextRare () at System.Collections.Generic.List`1.Enumerator.MoveNext () at A.c.A (Boolean) at VFXCentral.MainWindow.A (Object, DoWorkEventArgs) at System.ComponentModel.BackgroundWorker.OnDoWork (DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart (Object argument) I tried unsuccessfully to get help from the manufacturer. I use only the FSX. I have no idea what the message is and how I have to perform the installation now. I hope someone knows the problem and is ready to help me. Thanks and best regards Martin
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