Exception when opening a Project from GIT

Help Studio
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1

I tried to clone a project from our GIT repository and get the following exception:

An exception was thrown while activating UiPath.AddIn.Wpf.AddIn.

Thanks in advance, Michael

In detail:
Fehler: RemoteException wrapping Autofac.Core.DependencyResolutionException: An exception was thrown while activating UiPath.AddIn.Wpf.AddIn. —> RemoteException wrapping Autofac.Core.DependencyResolutionException: An exception was thrown while invoking the constructor ‘Void .ctor(UiPath.AddIn.Wpf.ILocalAddInProcess, System.Windows.UIElement, UiPath.AddIn.Wpf.AddInSettings)’ on type ‘AddIn’. —> RemoteException wrapping System.TypeLoadException: Method ‘DesignForm’ in type ‘UiPath.Form.ActivityLibrary.FormLibraryService’ from assembly ‘UiPath.Form.ActivityLibrary, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null’ does not have an implementation.
at System.Reflection.RuntimeAssembly.GetExportedTypes()
at System.Activities.Presentation.View.ImportDesigner.GetUniqueNamespacesInAssembly(Assembly assembly, AssemblyContextControlItem assemblyContextItem)
at System.Activities.Presentation.View.ImportDesigner.UpdateAvailableNamespaces(Assembly assembly, AssemblyContextControlItem assemblyContextItem)
at System.Activities.Presentation.View.ImportDesigner.GetAvailableNamespaces()
at System.Activities.Presentation.View.ImportDesigner.OnContextChanged()
at System.Activities.Presentation.View.ImportDesigner.OnContextChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty dp, Boolean preserveCurrentValue)
at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty dp)
at System.Windows.Data.BindingExpressionBase.Invalidate(Boolean isASubPropertyChange)
at System.Windows.Data.BindingExpression.TransferValue(Object newValue, Boolean isASubPropertyChange)
at System.Windows.Data.BindingExpression.Activate(Object item)
at System.Windows.Data.BindingExpression.AttachToContext(AttachAttempt attempt)
at System.Windows.Data.BindingExpression.MS.Internal.Data.IDataBindEngineClient.AttachToContext(Boolean lastChance)
at MS.Internal.Data.DataBindEngine.Task.Run(Boolean lastChance)
at MS.Internal.Data.DataBindEngine.Run(Object arg)
at MS.Internal.Data.DataBindEngine.OnLayoutUpdated(Object sender, EventArgs e)
at System.Windows.ContextLayoutManager.fireLayoutUpdateEvent()
at System.Windows.ContextLayoutManager.UpdateLayout()
at System.Windows.UIElement.UpdateLayout()
at System.Windows.Interop.HwndSource.SetLayoutSize()
at System.Windows.Interop.HwndSource.set_RootVisualInternal(Visual value)
at System.Windows.Interop.HwndSource.set_RootVisual(Visual value)
at UiPath.AddIn.Wpf.AddIn…ctor(ILocalAddInProcess addInProcess, UIElement control, AddInSettings settings)
at lambda_method540(Closure , Object )
at Autofac.Core.Activators.Reflection.BoundConstructor.Instantiate()
— End of inner exception stack trace —
at Autofac.Core.Activators.Reflection.BoundConstructor.Instantiate()
at Autofac.Core.Activators.Reflection.ReflectionActivator.ActivateInstance(IComponentContext context, IEnumerable1 parameters) at Autofac.Core.Activators.Reflection.ReflectionActivator.<ConfigurePipeline>b__11_0(ResolveRequestContext ctxt, Action1 next)
at Autofac.Core.Resolving.Middleware.ActivatorErrorHandlingMiddleware.Execute(ResolveRequestContext context, Action1 next) --- End of inner exception stack trace --- at Autofac.Core.Resolving.Middleware.ActivatorErrorHandlingMiddleware.Execute(ResolveRequestContext context, Action1 next)
at Autofac.Core.Resolving.Middleware.SharingMiddleware.Execute(ResolveRequestContext context, Action1 next) at Autofac.Core.Resolving.Middleware.CircularDependencyDetectorMiddleware.Execute(ResolveRequestContext context, Action1 next)
at Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance(ISharingLifetimeScope currentOperationScope, ResolveRequest request)
at Autofac.Core.Resolving.ResolveOperation.ExecuteOperation(ResolveRequest request)
at lambda_method740(Closure , ILocalAddInProcess , UIElement , AddInSettings )
at UiPath.Studio.Plugin.Workflow.AddInFramework.AddInProjectEndpoint.Marshal(UIElement element, AddInMarshalSettings settings)
at UiPath.Studio.Plugin.Workflow.Services.ToolboxWindowService.GetToolboxWindowInternal()
at UiPath.Studio.Shared.MVVM.Services.DispatcherService.InvokeAsync[T](Func1 func) at UiPath.CoreIpc.Server.<>c__DisplayClass7_3.<<-ctor>g__InvokeMethod|6>d.MoveNext() --- End of stack trace from previous location --- at UiPath.CoreIpc.Server.<>c__DisplayClass7_1.<<-ctor>g__HandleRequest|3>d.MoveNext() --- End of stack trace from previous location --- at UiPath.CoreIpc.Server.<>c__DisplayClass7_2.<<-ctor>b__5>d.MoveNext() --- End of stack trace from previous location --- at UiPath.CoreIpc.Helpers.Timeout[TResult](TimeSpan timeout, List1 cancellationTokens, Func2 func, String message, Func2 exceptionHandler), HResult -2146233088

2

Additionally, i also tried to renaming C:\Users<user>.nuget\packages.

When the project was reopened, all packages were reinstalled, but the problem remained, same exception as before…

3

@michael.nes could you try following some of the troubleshooting steps in the below post.