visual studio 2015 - Unable to install/update any nuget packages using VS2015 -


i’ve run problem whereby cannot install nugetpackages. includes updating existing packages, whereby remove old package , fail install updated one, leaving solutions in broken state!

here’s example of output package manager console when trying install specflow example:

pm> install-package specrun.specflow -verbose   http://path:to/nugetserver/api/nuget/nuget-repos/findpackagesbyid()?id='specrun.specflow'   ok http://path:to/nugetserver/api/nuget/nuget-repos/findpackagesbyid()?id='specrun.specflow' 780ms attempting gather dependency information package 'specrun.specflow.1.5.2' respect project 'framework\myservice.data', targeting '.netframework,version=v4.5.1' attempting resolve dependencies package 'specrun.specflow.1.5.2' dependencybehavior 'lowest' resolving actions install package 'specrun.specflow.1.5.2' resolved actions install package 'specrun.specflow.1.5.2' adding package 'specflow.2.1.0' project 'myservice.data' targets 'net451'. adding package 'specflow.2.1.0' project 'myservice.data' targets 'net451'. adding package 'specflow.2.1.0' folder 'f:\tfs\myservice\main\packages' added package 'specflow.2.1.0' folder 'f:\tfs\myservice\main\packages' install failed. rolling back... package 'specflow.2.1.0' not exist in project 'myservice.data' removing package 'specflow.2.1.0' folder 'f:\tfs\myservice\main\packages' removed file 'specflow.2.1.0.nupkg' folder 'f:\tfs\myservice\main\packages\specflow.2.1.0'. removed folder 'f:\tfs\myservice\main\packages\specflow.2.1.0'. removed package 'specflow.2.1.0' folder 'f:\tfs\myservice\main\packages' install-package : failed add reference 'techtalk.specflow'. @ line:1 char:1 + install-package specrun.specflow -verbose + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~     + categoryinfo          : notspecified: (:) [install-package], exception     + fullyqualifiederrorid : nugetcmdletunhandledexception,nuget.packagemanagement.powershellcmdlets.installpackagecommand 

as can see, downloads packages (and can see appear on file system in packages folder) fails install , deletes disk. i’ve searched , verified packages folder isn’t checked in source control accident. happening on solution open using visual studio 2015.i’ve tried console , package manager gui , both fail.

things seem working in vs2013 (which 1 of workarounds i’ve been using not long term solution).

vs 2015 date nuget.

thanks


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