Hi, 

We have just migrated to Trados 2026, and before doing so, we want to update our GroupShare 2021 (GS 2020 SR1 CU12) to the latest version, SR2 CU15. We read the instructions:

https://gateway.rws.com/csm?id=kb_article&sysparm_article=KB0027397

and proceeded with the update. However, once the installation was complete, errors appeared::

System.Exception: ConfigureChefDeployments returned with code 1
   en Sdl.Distribution.ServerInstall.Wizard.PostInstallStep.<DoConfiguration>b__3_1(Object sender, RunWorkerCompletedEventArgs args)
   en System.ComponentModel.BackgroundWorker.OnRunWorkerCompleted(RunWorkerCompletedEventArgs e)
   en System.ComponentModel.BackgroundWorker.AsyncOperationCompleted(Object arg)
   en System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   en System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   en System.Windows.Threading.DispatcherOperation.InvokeImpl()
   en System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
   en MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj)
   en System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   en System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   en System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   en MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)
   en System.Windows.Threading.DispatcherOperation.Invoke()
   en System.Windows.Threading.Dispatcher.ProcessQueue()
   en System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   en MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   en MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   en System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   en System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   en System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   en MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   en MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   en System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   en System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   en System.Windows.Application.RunDispatcher(Object ignore)
   en System.Windows.Application.RunInternal(Window window)
   en System.Windows.Application.Run(Window window)
   en Sdl.Enterprise2.Installers.EnterpriseEdition.Program.Main(String[] args)

We had to restore the backup files. We have checked the antivirus, and it is not interfering with the installation.

Any ideas where the problem might lie? We look on the knowledge database and see other people with the same problem:

 Error at the end of upgrading GroupShare 2020 to CU15 

Thanks!