I installed a package with Nuget on VisualStudio, but in the Packages of my project, this message appears in the extension I installed. What should I do to make it work properly?
The extension is: ThriveGmbH.BottomNavigationBar
Package 'ThriveGmbH.BottomNavigationBar.LATEST 1.0.6' was restored
using '.NETFramework,Version=v4.6.1, .NETFramework,Version=v4.6.2,
.NETFramework,Version=v4.7, .NETFramework,Version=v4.7.1,
.NETFramework,Version=v4.7.2, .NETFramework,Version=v4.8' instead of
the project target framework '.NETStandard,Version=v2.0'. This package
may not be fully compatible with your project.
Different projects can target different frameworks. Your project is targeting netstandard2.0, but the package you're depending on doesn't support any netstandard framework.
The only solutions are to not depend on that package, or to change the target framework of your project to net472 or one of the others in the list in the error message.
Related
Does a VS project that targets netstandard2.0 need to install the NetStandard.Library nuget package?
This MS doc says " The most common way to target netstandard is by referencing this metapackage."
My project does NOT reference the package, but DOES target netstardard using
<TargetFrameworks>netstandard2.0;net6.0</TargetFrameworks>
And everything works ok. But who knows, I might be missing something that only comprehensive testing would reveal.
I have a vendor provided DLL which is based on .NET Framework. I do not have access to code and I only have the DLL. I have packaged this DLL into a nuget package and now I am trying to refer this into a .NET standard project. But I am getting warning as - Package 'MyPackage 0.0.1' was restored using '.NETFramework,Version=v4.6.1' instead of the project target framework '.NETStandard,Version=v2.0'. This package may not be fully compatible with your project..
If I refer the DLL directly into a .NET standard project it doesn't show this warning. But using it after creating a nuget package shows that.
I also tried creating a .NET standard lib project, added DLL reference and then created a nuget package but still it was showing same warning.
Is there another way of doing it? Vendor doesn't provide DLLs targeting other frameworks and I have to use it after packaging it into Nuget because of requirements.
In my side, I test the situation as you described. Create a net standard lib project called test, then use this node to include into the package.
1) create a net standard lib nuget project called test and only add this node under test.csproj file:
<ItemGroup>
<None Include="xxx\xxx\xxx.dll"(the whole path of the net framework dll) Pack="true" PackagePath="lib\$(TargetFramework)"></None>
</ItemGroup>
2) right-click on the net standard test project-->click Pack button and you can get the new version of the nuget package.
Before you install the nuget package into another main project, you should first clean nuget caches or delete all files under C:\Users\xxx(current user)\.nuget\packages.
And I did not face the issue in my side with all the above steps.
I created a setup project using Microsoft Visual Studio Installer Projects (0.9.3, this is latest for Visual Studio 2019). After setup is executed it installs Nuget package assemblies that are different from the assemblies generated during build.
Why is it doing that and how can I make it to chose assemblies consistent with build assemblies?
My application is for 4.7.2 framework. Typical example is System.ValueTuple.dll (4.0.2)
Build retrieves assembly from:
C:\Users\.nuget\packages\system.valuetuple\4.5.0\lib\net47\System.ValueTuple.dll
Install retrieves assembly from:
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETFramework\v4.7.2\Facades\System.ValueTuple.dll
While install based on 4.0.2 creates a concern but works, when I upgrade nuget package to version 4.6 (and assembly to 4.0.3) install switches to using assembly C:\Users\vgdev.nuget\packages\system.valuetuple\4.5.0\ref\net47\System.ValueTuple.dll
If you look closer, you will notice path above has \ref folder and it contains "reference" assembly. Reference assemblies are not meant to be installed and cause errors BadImageformatException.
The build after Nuget package upgrade continues to pull packages from the correct \lib folder and application works fine. So what I want to do is to make installer work consistently with build. Any advice?
Install retrieves assembly from: C:\Program Files (x86)\Reference
Assemblies\Microsoft\Framework.NETFramework\v4.7.2\Facades\System.ValueTuple.dll
Which way do you reference that package? I can only reproduce this issue when I add reference manually.(Right-click project=>Add reference=>Browse...) If you're doing so, please remove that reference, and add that reference back by Nuget Package Manager UI.
My application is for 4.7.2 framework. Typical example is
System.ValueTuple.dll (4.0.2). When I upgrade nuget package to version 4.6 (and assembly to 4.0.3)
I can only find it with latest 4.5.0 here. And I think it contains the assembly version 4.0.3 instead of 4.0.2.
(I guess something corrupts the process when VS recognize your assembly version cause in most machines it displays 4.0.3 while in one machine, it displays 4.0.2, quite strange...)
The build after Nuget package upgrade continues to pull packages from
the correct \lib folder and application works fine. So what I want to
do is to make installer work consistently with build. Any advice?
Cause of the issue:
This strange behavior may have something to do with Setup project. I can reproduce same situation and I found this issue only occurs when I use PackageReference format to manage nuget packages in my application.(.net 4.7.2)
PackageReference format is the new nuget package manage format after VS2017. I'm not sure if the Setup project fully support for it.
Here're two suggestions which may help:
1.I found this issue only occurs when using PackageReference format. So you can try using Packages.config format in your application. And I've checked the setup project can recognize this format well.
Uninstall all PackageReference format packages, and go Tools=>Nuget Packages Manager=>Nuget Package Manager to set the Allow format selection... to true.
Clean all nuget cache and click ok. After that delete bin and obj folders, then restart VS to add those packages back using Packages.config format.
2.If you continue to use PackageReference format. Try excluding the assembly from ref folder, and manually add that from lib folder by Add=>Assembly=>Browse.
Note: Since Setup project may not fully support packageReference format projects, actually I think #1 could be more suitable for your situation. And you can create a new simple project with packages.config format to check if the issue can be resolved by Packages.config format. Hope it helps :)
It seems that the root cause of the problem is the usage of the BuiltProjectOutputGroupDependencies target by visual studio setup projects instead of the ReferenceCopyLocalPathsOutputGroup target (see PackageReferences put ref instead of lib assemblies in the output group used by VS installer projects).
The proposed workaround is to overwrite the BuiltProjectOutputGroupDependencies target at the end in the project file of your main project:
<Target
Name="BuiltProjectOutputGroupDependencies"
DependsOnTargets="$(BuiltProjectOutputGroupDependenciesDependsOn)"
Returns="#(BuiltProjectOutputGroupDependency)">
<ItemGroup>
<BuiltProjectOutputGroupDependency Include="#(ReferenceCopyLocalPaths->'%(FullPath)');
#(ReferenceDependencyPaths->'%(FullPath)');
#(NativeReferenceFile->'%(FullPath)');
#(_DeploymentLooseManifestFile->'%(FullPath)');
#(ResolvedIsolatedComModules->'%(FullPath)');
#(ReferenceComWrappersToCopyLocal->'%(FullPath)')"/>
</ItemGroup>
</Target>
I have a .NET Core 2.2.0 app that references various NuGet packages.
.NET Core relies on PackageReference style packages defined in .csproj project files. It does not rely on packages.config
Nevertheless I expected Restore NuGet Packages ( or Build ) to pull-down all referenced packages and their dependency packages into the project packages folder ( peer level to .csproj or .sln file ).
I expected this because my understanding is that .NET Core follows many of the conventions of open-source package managers such as npm that operate on the principle of self-sufficient app domains.
However the vast majority of the packages are pulled-down to this folder :
C:\Users\username\.nuget\packages\
( A couple packages are pulled into the project packages folder - and I don't see what about these packages is different. )
Apparently Visual Studio and/or NuGet prefers to avoid duplication of effort and cache almost all packages centrally.
Why is this ? And can it be configured differently ?
First, the "open source package manager" behaviour you describe is not really an "open source package manager" behaviour. It's an implementation of some package managers. Java's Maven (mvn), for example, does the same thing as .NET Core and you can't claim maven is closed source.
Second, some package managers, such as npm copy over all dependencies into a package directory (eg, node_modules) because they use sources, not binaries, and because they grab transitive sources and multiple dependencies same names but different versions. NuGet doesn't do that. It uses binaries only and doesn't support multiple versions. NuGet only resolves exactly one version for each dependency in your project. See this stackoverflow post for more information. The exact version resolved and used is written out to the .deps.json file in your build directory.
Third, .NET Core's Self-Contained Deployments - which are meant to be executible/distributable without any other additional dependencies - don't make use of the package cache. When you publish your application (dotnet publish on the command line), all the dependencies are copied to the publish directory. The version is that in the deps.json file, like I said above.
So the main nuget package cache - which is shared on your system with other projects - is just a simple cache of binaries for .NET Core. There's no reason it has to be unique to your project to copied over to your project directory.
I am trying to install MySql.Data and MySql.Data.Entity to my class lib.
Somehow there is no reference added to the project.
Things I've tried:
Update-Package -reinstall (does not help)
packages.config contains the correct entries
*.csproj also has the correct entries
Cleared NuGet-Cache
This is the output:
Package 'MySql.Data.6.10.6' already exists in folder
'C:\Users\MYUSERNAME\Documents\Repositories\XXXXXXX\packages'
Added package 'MySql.Data.6.10.6' to 'packages.config'
Successfully installed 'MySql.Data 6.10.6' to XXXXXXXX.Persistence
Executing nuget actions took 1,6 sec
Strange thing is that NuGet creates that \docs in my project which is part of MySql
Nuget-package not adding package reference
I agree with Matt`s comment. You project targets framework should be .NET 4.5.1 or below. Because the package MySql.Data only contain assembly reference to .NET framework 4.5.2 for .NET framework:
However, this package also have the content files, which are compatible with .net framework. So when you add this package to the project(target framework 4.5.1 or below), nuget will install this nuget package without any error, just add the content file (\docs) but not add any reference to the project.
To resolve this issue, you can change the target framework to 4.5.2 and above of this project or you should use the nuget package MySql.Data with the version 6.9.11, which contain assembly reference to .NET framework 4.0 and 4.5:
Note: If you change the target framework to the .net framework 4.5.2 and above, you may get the error "The package 'MySql.Data' tried to add a framework reference to 'System.ComponentModel' which was not found in the GAC.", please add a manually reference to missed library:
Package tried to add reference to System.Runtime which was not found in the GAC
Hope this helps.
I experienced this problem even though I had the correct Framework.
It was solved by Migrating the Nuget Format to Package References
For visual studio latest versions you have to right click on Dependencies > Manage NuGet Packages > click in the settings button with a flower-like shape, then in NuGet Package Manager option choose General, and change Default package management format from packages.config to PackageReference.
If that does not do the trick, then you will have to add the packages through the CLI tools, looking into the nuget gallery and pasting the comand directly with the desired version, like for example:
dotnet add package Microsoft.EntityFrameworkCore.Design --version 6.0.10