Unable to install custom activity

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1

Hi… Unable to install custom activity package in UIPath studio.Getting Following exception.

Cannot load assembly: C:\Users\Admin.nuget\packages\caliburn.micro/3.0.1\lib/net45/Caliburn.Micro.Platform.Core.dll : System.BadImageFormatException: Could not load file or assembly ‘System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a’ or one of its dependencies. Reference assemblies should not be loaded for execution. They can only be loaded in the Reflection-only loader context. (Exception from HRESULT: 0x80131058)
File name: ‘System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a’ —> System.BadImageFormatException: Cannot load a reference assembly for execution.
at System.Reflection.RuntimeAssembly.GetExportedTypes(RuntimeAssembly assembly, ObjectHandleOnStack retTypes)
at System.Reflection.RuntimeAssembly.GetExportedTypes()
at UiPath.Studio.Plugin.Workflow.Services.AssemblyContainer.AddAssemblyInternal(Assembly assembly, String path) in D:\a\1\s\Studio\UiPath.Studio.Plugin.Workflow\Services\AssemblyContainer.cs:line 249
at UiPath.Studio.Plugin.Workflow.Services.AssemblyContainer.LoadAssemblies(String paths, IAppDomainCancellationToken cancellationToken) in D:\a\1\s\Studio\UiPath.Studio.Plugin.Workflow\Services\AssemblyContainer.cs:line 98

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2

Hi @Vinutha25,

Are you finally found a solution to your problem?
If yes, I have the same one, so I would like to know how to resolve it.
Thank you.

3

reinstall the studio or upgrade the studio.