When trying to upgrade from the trial version I get this error message.
I have gone to the folder in question and the subfolder is missing
An error occurred while running the wizard.
Error executing custom action Telerik.Web.UI.VSX.Actions.MultiProjectUpdateReferencesAction: System.IO.DirectoryNotFoundException: Could not find a part of the path 'D:\Users\Administrator\AppData\Local\Temp\Telerik\ShadowCopy\Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml, Version=2020.3.1019.40, Culture=neutral, PublicKeyToken=5803cfa389c90ce7\Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.dll'.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.File.InternalCopy(String sourceFileName, String destFileName, Boolean overwrite, Boolean checkHost)
at System.IO.File.Copy(String sourceFileName, String destFileName)
at Telerik.VSX.Internal.FileSystem.FileOperator.Copy(String sourceFileName, String destinationFileName)
at Telerik.VSX.Internal.Assembly.AssemblyLoader.GetShadowCopy(String assemblyPath)
at Telerik.VSX.Internal.Assembly.AssemblyLoader.ReflectionOnlyLoadFromShadowCopy(String loadInformation)
at Telerik.VSX.DistributionListing.DistributionItem.GetReferencedAssemblies()
at Telerik.VSX.DistributionListing.DistributionItem.GetFilteredPrerequisites()
at Telerik.VSX.DistributionListing.DistributionItem.get_DistributionWidePrerequisites()
at Telerik.VSX.DistributionListing.DistributionItemList.IntegrityCapableItem.ResetUnmetPrerequisites()
at Telerik.VSX.DistributionListing.DistributionItemList.Add(IDistributionItem newDistributionItem)
at Telerik.VSX.DistributionListing.FileBasedDistribution.PopulateItems(DistributionItemList items)
at Telerik.VSX.DistributionListing.Distribution.get_Items()
at Telerik.VSX.Actions.AdvancedUpdateReferencesAction.GetAssemblyReferences(IProjectWrapUIComponents projectWrap, IDistribution distribution)
at Telerik.VSX.Actions.UpdateReferencesAction.UpdateReferences(IProjectWrapUIComponents projectWrap)
at Telerik.VSX.Actions.UpdateReferencesAction.Execute(WizardContext wizardContext, IPropertyDataDictionary arguments, IProjectWrap project)
at Telerik.VSX.Actions.ProjectActionBase.Telerik.VSX.Actions.IProjectAction.Execute(IWizardContext wizardContext, IPropertyDataDictionary arguments, IProjectWrap projectWrap)
at Telerik.VSX.Actions.MultiProjectActionBase`1.Execute(WizardContext wizardContext, IPropertyDataDictionary arguments)
at Telerik.VSX.Actions.MultiProjectUpdateReferencesActionBase`1.Execute(WizardContext wizardContext, IPropertyDataDictionary arguments)
at Telerik.VSX.WizardEngine.Actions.ActionBase.Telerik.WizardFramework.IAction.Execute(IWizardContext wizardContext, IPropertyDataDictionary arguments)
at Telerik.VSX.WizardEngine.ActionManager.ExecActions()