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May 27, 2017 - It might come one day in Visual Studio for Mac. Reference and install it https://docs.microsoft.com/en-us/nuget/tools/nuget-exe-cli-reference.

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How to create a hanging indent on word for mac. Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future. Please create a new report for Bug 61113 on if you have new information to add and do not yet see a matching new report. If the latest results still closely match this report, you can use the original description: • Export the original title and description: • Copy the title and description into the new report. Adjust them to be up-to-date if needed.

• Add your new information. Jens-Christian 2017-12-18 07:18:28 UTC After updating to VS 15.5 I'm unable to update NuGet packages in Android projects, both libraries and applications. I have gotten the error while updating Xamarin.Forms and Xamarin.Android.Support.* packages. The error message is 'This collection is read-only.'

Full log from Package Manager Attempting to gather dependency information for multiple packages with respect to project 'Applications LexTalk.Android', targeting 'MonoAndroid,Version=v7.1' Gathering dependency information took 18,9 sec Attempting to resolve dependencies for multiple packages. Resolving dependency information took 0 ms Resolving actions install multiple packages Retrieving package 'Xamarin.Forms 2.5.0.121934' from 'nuget.org'. Removed package 'Xamarin.Forms 2.4.0.38779' from 'packages.config' Successfully uninstalled 'Xamarin.Forms 2.4.0.38779' from LexTalk.Android Adding package 'Xamarin.Forms.2.5.0.121934' to folder 'U: Repos LexTalk packages' Added package 'Xamarin.Forms.2.5.0.121934' to folder 'U: Repos LexTalk packages' Install failed.

Rolling back. Package 'Xamarin.Forms 2.5.0.121934' does not exist in project 'LexTalk.Android' Package 'Xamarin.Forms 2.4.0.38779' already exists in folder 'U: Repos LexTalk packages' Added package 'Xamarin.Forms 2.4.0.38779' to 'packages.config' Removing package 'Xamarin.Forms 2.5.0.121934' from folder 'U: Repos LexTalk packages' Removed package 'Xamarin.Forms 2.5.0.121934' from folder 'U: Repos LexTalk packages' Executing nuget actions took 38,21 sec This collection is read-only. Time Elapsed: 00:499 ========== Finished ========== And I'm not the only getting this error. George Ceaser 2018-01-07 21:15:55 UTC I am getting the same error. I somehow managed to get everything to update except the four Xamarin.GooglePlayServices (Base, Basement, Maps, Tasks).

When I attempted to update them I go the error message Package 'Xamarin.GooglePlayServices.Basement.60.1142.0' already exists in folder then in started rolling back and showed the error 'This collection is read only'. I tried to manually install just the Basement - which worked - but then the other three packages (Base, Maps, Tokens) were not longer in my nugget package list for the project. Their reference is still in the project thought. Mr.pearce 2018-04-04 08:52:56 UTC I kinda fixed it by updating my pcl to netstandard and changing all projects to the new PackageReference in project.csproj file format. Remove all nuget references on all projects(will probably need to force remove them) In VS->Tools->Options->Nuget Package Manager->General 'Allow format seletion on first package install' should be turned on. When installing the packages again, VS should ask if you want to use PackageReference or Package.config. Chose PackageReference Add back your Nugets (this should be much quicker now by the way).

Jorge Castro 2018-04-04 20:21:12 UTC So yes, still an issue after so long, had to test reinstalling nuget packages for android because app center cannot find dlls that should be there, possibly an android reference somewhere, but since nuget is unusable for reinstalling still not sure what we should do, ignoring this reveals how much they care:) Executing nuget actions took 14.51 min update-package: This collection is read-only. At line:1 char:1 + update-package -reinstall + ~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo: NotSpecified: (:) [Update-Package], Exception + FullyQualifiedErrorId: NuGetCmdletUnhandledException,NuGet.PackageManagement.PowerShellCmdlets.UpdatePackageCommand. Sandip Ahluwalia 2018-04-10 08:55:48 UTC I have the same issue too. I am trying to update my Xamarin.Forms package from 2.5.0.122203 to 2.5.1.444934 and I am using Visual Studio v15.5.6 so that I can use the latest Xamarin.Forms.Maps package. The update works for the shared.NET standard, iOS and UWP projects, but always fails on the Android one with this 'This collection is read-only.' I have tried some of the suggestions above, but no success so far.