NuGet packages not restore in visual studio 2017 - visual-studio-2017

I have Asp.netCore solution which was working fine on Visual Studio 2015 and then i moved to Visual Studio 2017. Now the problem is that in Visual Studio 2017 on every nuget packages there is yellow exclamation mark. Following are solution which i have tried so far.
I'm using Visual Studio Version: 15.3.1
Run as 'Administrator' and restore package.
Clear All Nugget Cache(s) from Tools > options > NuGet Package Manager > and again restore Nuget.
Note: I have searched and found following solution and tried but did not resolve my issue.
Solution 1

I found the answer on another thread here and credit should go to #AxelWass although he did not specifically focus it towards this, it absolutely fixes this issue. The above answer did not.
I had the same issue and solve it by opening the project in a text editor and deleting the following section:
<Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
<PropertyGroup>
<ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
</PropertyGroup>
<Error Condition="!Exists('..\packages\Microsoft.Net.Compilers.1.0.0\build\Microsoft.Net.Compilers.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.Net.Compilers.1.0.0\build\Microsoft.Net.Compilers.props'))" />
<Error Condition="!Exists('..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.1.0.0\build\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.1.0.0\build\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.props'))" />
</Target>
Once this is removed, it will resolve this nightmare issue that VS2017 and PM seems to be unable to resolve. I too have run into this multiple times - especially when I blend many projects in the same solutions directory.

As mentioned in Microsoft Installing and reinstalling packages with package restore Documentation, you should Update-Package -reinstall:
Update-Package -reinstall -ProjectName <project> command where
is the name of the affected project as it appears in
Solution Explorer. Use Update-Package -reinstall by itself to restore
all packages in the solution.
If you still have the error, try edit your project file, check if there is A path refrence error there, also check the project/solution nuget config file.

By default, new installation of visual studio did not configure package source to search packages online. That caused the problem.
I found the answer with a little bit more work from a stackoverflow link: https://stackoverflow.com/a/32360953/1503372.
That answer mentions to use "https://www.nuget.org/api/v2" url to restore packages. When I opened the package manager console in visual studio 2017, I found it was searching for packages from my PC only (offline search).
I then added "https://www.nuget.org/api/v2" url as a source for restoring packages and it worked.
Follow below steps to add a package source.
Right click project > Manage nuget package and you will see "package source label".
Add highlighted URL to package source.
Select "All" as package source.
Once you have configured your visual studio to search for packages online, your all packages will be restored.

I discovered a wrong configuration in the nuget.config. I don't know why, in this file there are some exclusion for my current project.
You can see your global configuration running this command in File Explorer
%AppData%\NuGet\NuGet.Config

Related

Missing file NuGet.targets on existing project

The scenario is:
1. Created a NEW solution
2. ENABLED download missing packages
3. Add projects to solution that already exists and depends on nuget packages
4. Building the solution generates an error:
... The missing file is <solution folder>\.nuget\NuGet.targets.
Why? Have missing something?
I'm using Visual Studio 2017 Pro on Windows 10
All my searches answer about the scenario where create a new solution and adds a new project that depends on nuget package, that's ok, but when have an existing project, nothing.
<solution folder>\.nuget\NuGet.targets is a file that NuGet's Visual Studio extension used to add in Visual Studio 2010, 2012 and 2013 when you right click on the solution and select "Enable NuGet Package Restore". It would then add an import in all of your project files to import the targets file. I was recently investigating a customer issue and as part of that investigation I found it made the following changes. Near the top of the csproj, it adds something like this:
<SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
<RestorePackages>true</RestorePackages>
and near the end of the csproj it adds somthing like this:
<Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
<Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
<PropertyGroup>
<ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
</PropertyGroup>
<Error Condition="!Exists('$(SolutionDir)\.nuget\NuGet.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\.nuget\NuGet.targets'))" />
</Target>
So, the problem is that you're creating a new solution, but using existing project files that have been modified in this way. One option is to edit your csrpoj files and remove these changes. Another option is to create new projects, in addition to the new solution, and then copy all your code and content files.
The only disadvantage is if you build on a CI server and use packages.config, your build script needs to run nuget.exe restore, whereas projects that use NuGet.targets could just build the solution and msbuild would execute nuget restore as needed. One advantage of no longer using NuGet.targets is that restoring the whole solution is faster than restoring project by project. Visual Studio automatically restores packages on build, even in VS2010, VS2012 and VS2013, so personally I discourage the use of using this feature, even if you use those old versions of Visual Studio. The benefit of reducing your build script by one step is not worth the issues it brings, in my opinion.

nuget package reference blue icon in visual studio 2017

For some reason in my console app, couple of the reference that I installed thru nuget shows the blue nuget icon. I can build my project locally, but not after I deploy my project to cloud. The error msg is complaining about not able to find these 2 references. Seems like I can't delete them either by right click(no delete option avaialble). Any idea?
nuget package reference blue icon in visual studio 2017
That because you are using the packagereference on the project types that are not .NET Core.
You can edit the .csproj file and check if it contains following ItemGroup:
<ItemGroup>
<PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
</ItemGroup>
To resolve this issue, you can delete this PackageReference from your project file, then add those package with nuget package.
Besides, you should check if you have set the Default package management format to PackageReference. If yes, change it to packages.config, then add those two packages with nuget:
Hope this helps.
Happened to me in VS 2022.
Solved by deleting the bin and obj folders, which removed the reference with the blue icon. And after that reinstalled the NuGet packages, which added the references to the csproj file.
update-package -reinstall -project MyProjectName

Unable to find nuget local source error occurred while restoring nuget packages the local source doesn't exist

I've been given a visual studio 2017 solution. When I open it fails as with the error:
Error occurred while restoring NuGet packages: The local source '\\network-location\' doesn't exist.
I can manually acquire a copy of these packages but I don’t know where this original path is configured and how I would go about changing it to the new location.
Any suggestions as to where I should look please?
The package sources can be found in the Visual Studio options (Tools -> Options) under NuGet Package Manager -> Package Sources or directly by clicking on the according icon in the NuGet dialog (context menu of a solution/project -> Manage NuGet Packages...):
Your local package source should then be listed in the following dialog:
The package source may, however, be solution or project specific and may therefore be specified in a NuGet.config file in the solution directory. Beginning with NuGet 3.4, Visual Studio looks in the project's directory or "or any folder up to the drive root", according to the NuGet.config reference. Up to NuGet 3.3, also subdirectories with the name .nuget where searched for NuGet.config files.
The file containing your local package source must be changed in order to restore the correct packages.
Nothing of the proposed solutions above did it for me. And, honestly, I really don't like, what Microsoft is doing for some time now: each time there's another surprise when installing an update. :-(
Analysis:
Error occurred while restoring NuGet packages: The local source 'C:\Microsoft\Xamarin\NuGet' doesn't exist.
Obviously NuGet is trying to restore from C:\\Microsoft\\Xamarin\\NuGet for s solution that has nothing to do with Xamarin. The solution compiled many times before and even getting it back from GIT did not change anything. So, the problem is not my solution. It is something more global.
By the way: I DONT WANT TO USE THIS FOLDER, cause I don't use Xamarin!
I found the following reference in the *.csproj.nuget.dgspec.json files in any obj folder of my solution. All these json files pointed to this Xamarin folder:
"fallbackFolders": {
"C:\\Microsoft\\Xamarin\\NuGet": {},
"C:\\Program Files (x86)\\Microsoft SDKs\\NuGetPackages\\": {},
"https://api.nuget.org/v3/index.json": {}
},
Question: How does VS know about the fallbackFolders?
I did not find any hint in any of my Visual Studio / NuGet configuration settings, as proposed above. I deleted all objfolder but each time when trying to compile or restore my packages, the reference came back.
The SOLUTION for me was :
delete all objfolders in your solution (as mentioned above)
delete c:\Program Files (x86)\NuGet\Config\Xamarin.Offline.config
There you will find the following:
<fallbackPackageFolders>
<add key="Xamarin Offline Packages" value="C:\Microsoft\Xamarin\NuGet\"/>
</fallbackPackageFolders>
This file was introduced on my machine one week ago, and I think it came with the latest VS update (16.2). I did not go away with the latest update (16.2.1) from today.
You will encounter the same issue in Visual Studio 2019. I have the same issue, I thought it was a conflict on Visual Studio 2017 but it wasn't.
The fix is you have to remove the source that is causing the issue.
You can remove it via Tools -> NuGet Package Manager -> Package Manager Settings
In my case i have getting this error:
Error occurred while restoring NuGet packages: The local source 'C:\Microsoft\Xamarin\NuGet' doesn't exist.
I have accidentally deleted 'C:\Microsoft\Xamarin\' folder.
After this VS2019 was not able to restore packages.
I just manually created 'C:\Microsoft\Xamarin\NuGet' folder.
Restarted VS, cleaned solution and everything goes well after this.
All answers are relevant however they are not complete, wasted 30 mins on this.
Below worked fine:
1 . Clear cache & remove issue folders:
Tools > NuGet Package Manager > Package Manager Settings
> NuGet Package Manager > General > Clear All NuGet Cache(s)
Tools > NuGet Package Manager > Package Manager Settings
> NuGet Package Manager > Package Sources
> Available package sources
> {uncheck the folder that is giving error}
> OK
2 . Restore NuGet Packages on VS Solution
Right-click on Visual studio solution (not project)
> Restore NuGet Packages
3 . Build & run project
Hope that helps.
I had this error in different situation. I checked contents of Nuget.config in my solution folder and under <packageSources> node it had an entry pointing to ./nuget. This folder didn't exist in the solution directory, so I just created an empty folder with this name and the solution compiled without any problems.
In My case the only way to solve it was to clean up all the NuGet cache(s).
You can find it at Tools -> NuGet Package Manager -> General
Clear All NuGet Cache(s) print
but I don’t know where this original path is configured and how I would go about changing it to the new location.
To resolve this error, please search the file NuGet.config in the given solution, then edit it with notepad, you will find following setting in that file:
<packageSources>
<add key="LocalServerName" value="\\network-location\" />
</packageSources>
You could change the value to the new location.
Same situation:
Error occurred while restoring NuGet packages: The local source 'C:\Program Files (x86)\Microsoft Visual Studio\Shared\NuGetPackages' doesn't exist.
My solution is re-creating the folder.

The target "GatherAllFilesToPublish" does not exist in the project

I've checked that the same error occurred in the past with earlier vs .net versions but I am facing this issue in VS 2017 while trying to upgrade from VS Community 15.3.5 to 15.4.
I first installed using the web installer by choosing the options,
some how there were a couple of errors & the download + installation took over 9+ hours
visual studio was working and compiling project except that this had the problem 'The target "GatherAllFilesToPublish" does not exist in the project'.
Then I tried downloading the entire setup using "vs_community.exe --layout "C:\MyFolder" --lang en-US" which again took over 9 hours to finish download. Re-ran the setup choosing Repair, again the same issue.
Is any one aware of a quicker way to solve this above problem?
I had similar problem and it solved by changing csproj file:
<Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" Condition="false" />
changed to
<Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v15.0\WebApplications\Microsoft.WebApplication.targets" Condition="true" />
I had same issue (Visual Studio 2017).
Install - " MSBuild.Microsoft.VisualStudio.Web.targets " nuget package to visual studio. And then try to publish.
Just install the ASP.Net Web Deployment component for VS2017, it worked for me.
Similar issue occurred with me after I upgraded project from previous version to VS 2017. I had to make following changes in the csproj file.
Uncomment the following part of code from csproj file ( It was already present as comment, not sure why it did not change while upgrade automatically. If you do not have it, add below lines of code.)
<PropertyGroup>
<VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
<VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)
</VSToolsPath>
</PropertyGroup>
Make sure below 3 imports are present in the csproj file. (These were also present, but if not, add manually)
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
<Import Project="$(VSToolsPath)\WebApplications\Microsoft.WebApplication.targets" Condition="'$(VSToolsPath)' != ''" />
<Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" Condition="false" />
And then I was able to publish the project.
I wonder what packages are changing these paths?
Mine is as follows:
<VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildProgramFiles32)\MSBuild\Microsoft\VisualStudio\v14.0</VSToolsPath>
changed to
<VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
same issue as this: https://stackoverflow.com/a/48545538/231821
I had this same problem, I updated Visual Studio 2017 to a newer version via the installer.
The installer never completed successfully. It completed with some errors which I just ignored so many of the components weren't installed which came after the components with errors. After I resolved the error components, the rest of the installation finally completed successfully and I could publish again with no problems.
I think some of the components which wasn't installed previously was older versions which was not compatible with the new update.
Try installing/updating your visual studio completely with no errors.

Visual Studio 15 Compilation Fails- clean project

I am using Visual Studio 15 Preview 3
When I create a new project (ASP.Net 5 "Empty" project) and press build all it fails to build. I get the following errors.
Severity Code Description Project File Line Suppression State
Error MSB4063 The "VsTsc" task could not be initialized with its input parameters. WebApplication3 C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v15.0\TypeScript\Microsoft.TypeScript.targets 247
Error MSB4064 The "OutputLogFile" parameter is not supported by the "VsTsc" task. Verify the parameter exists on the task, and it is a settable public instance property. WebApplication3 C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v15.0\TypeScript\Microsoft.TypeScript.targets 261
Any suggestions please. I have added no code, just created the project and pressed build.
If you check out the Output window contents after the build has failed, it should show the targets file path like this one:
C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v14.0\TypeScript\Microsoft.TypeScript.targets
Go ahead and remove the OutputLogFile attribute from the VsTsc element. This should make the build go through.
Downgrading "Microsoft.TypeScript.MSBuild" from version 2.0.6 to 1.8.11 removed the Compilation Errors.
I had a similar issue. As it turns out the VsTsc task does support OutputLogFile. When I installed the newer TypeScript nuget packages (Microsoft.TypeScript.Compiler and Microsoft.TypeScript.MSBuild) then it adds Microsoft.TypeScript.targets to the .csproj but neglects to remove the previous lines. Nuget will add lines similar to
<Import Project="..\packages\Microsoft.TypeScript.MSBuild.2.1.4\build\Microsoft.TypeScript.MSBuild.props" Condition="Exists('..\packages\Microsoft.TypeScript.MSBuild.2.1.4\build\Microsoft.TypeScript.MSBuild.props')" />
<Import Project="..\packages\Microsoft.TypeScript.MSBuild.2.1.4\build\Microsoft.TypeScript.MSBuild.targets" Condition="Exists('..\packages\Microsoft.TypeScript.MSBuild.2.1.4\build\Microsoft.TypeScript.MSBuild.targets')" />
You have to manually removed the two lines pointing to :
<Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\TypeScript\Microsoft.TypeScript.Default.props" Condition="Exists('$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\TypeScript\Microsoft.TypeScript.Default.props')" />
<Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\TypeScript\Microsoft.TypeScript.targets" Condition="Exists('$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\TypeScript\Microsoft.TypeScript.targets')" />
The same errors were observed after installing Visual Studio Preview. Visual Studio 2015 Community addition Update 3 installed on the same computer also started getting the same errors, on a number of different Typescript solutions. I could build the same solutions on an old computer 'Visual Studio 2015 Community addition Update 1'. I then uninstall Visual Studio Preview. Errors still occurred on Visual Studio 2015 Community addition Update 3. Also then uninstalled and reinstalled community addition and the problem was resolved, and could build the project. I thought this solution may help others with the problem solving a more elegant solution I do not have the reputation points to make a comment (where this belongs).
I was having the same issue with VS2015 Community and downloading the latest version of TypeScript (Version 2.1.5 posted 1/11/17) at https://www.microsoft.com/en-us/download/details.aspx?id=48593 did the trick for me.
I had the same problem. TypeScript tools in VisualStudio 2015 and TypeScript packages attached to project had different versions that is why build failed with "The "VsTsc" task could not be initialized with its input parameters". I reinstalled TypeScript tools for VisualStudio 2015 (get older vertion) it solved my problem.
I had a similar problem.
For me the solution was:
Remove "Microsoft.TypeScript.Compiler" package
Remove "Microsoft.TypeScript.MSBuild" package
from installed packages.