Unable To Use RE Framework Project Due To Microsoft Windows Design Extensibility Error

Resolution fix when it is not possible to use RE Framework project due to Microsoft Windows Design Extensibility error .

Issue Description: Projects in Studio based on the Robotic Enterprise Framework template can not be used, due to the error: Microsoft.Windows.Design.Extensibility, version 4.3.10, culture=neutral, PublicKeyToken=b03f5f7f11d50a3a or one of its dependencies.

It is not possible to create any new projects, install Studio or open already created projects.

Sample of the error:

Resolution: This error seems to be a bug in the current version of the Studio product. Until the bug is fixed, two tested workarounds are available.

Workaround #1: Search for the following file in your computer: Microsoft.Windows.Design.Extensibility.dll. On finding it (regardless of location), copy it to the folder \net461 in the Studio installation folder. (example: C:\Program Files\UiPath\Studio\net461)

Once this is performed, the change will be persistent through all the projects used in Studio.

Workaround #2: Remove the dependency UiPath.Testing.Activities 1.4.4 from the Robotic Enterprise Framework project. This is not persistent throughout all future projects, so it must be performed before opening/ running each project.

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