visual studio - Object reference not set to an instance of an object error on updating NuGet package -

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hi have updated manage nuget package , vs 2013 give "object reference not set instance of object" error whenever run program. tried find solution failed. uninstalled vs , reinstall. error same on making new project.

i had same issue , forced revert earlier version of nuget. v2.8.6 has imposed dependency on .net 4.5+ in point release - bad behavior imho. see nuget 2.8.6 causing dependency on .net 4.5+?


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