Solution : Install Uipath.web.activity version 1.2.6863.33980
explanation:
you are getting this error 'Rest Sharp (>= 106.3.1) because you are trying to install Higher version of Uipath.web.activity
if you install studio version 2017.1.6435 By default RestSharp.105.0.1.nupkg is installed in your system…
And any version above Uipath.web.activity version 1.2.6863.33980 will throw you error…