.netnugetnuget-packagenuspec

Creating NuGet package: NU5128 exception - not clear on how to fix

I have a DLL addressing the .NET 4.7.1 library.

Probably irrelevant, but it's written in C# and consumes NuGet packages using the "packages.config" pattern, rather than the newer PackageReference configuration.

I publish this as a NuGet package (have been doing this for several years). But now when I execute the following:

nuget pack -Properties Configuration=Release

I get the following warning:

Error NU5128: Some target frameworks declared in the dependencies group of the nuspec and the lib/ref folder do not have exact matches in the other location. Consult the list of actions below: - Add a dependency group for .NETFramework4.7.1 to the nuspec

I don't have anything in the dependencies group of the nuspec:

<?xml version="1.0"?> 
<package >   
    <metadata>
        <id>*******</id>
        <version>*******</version>
        <title>*******</title>
        <authors>*******</authors>
        <owners>*******</owners>
        <requireLicenseAcceptance>false</requireLicenseAcceptance>
        <description>*******</description>
        <releaseNotes>*******</releaseNotes>
        <copyright>*******</copyright>
        <tags>*******</tags>
   </metadata> 
</package>

This consumes the following NuGet packages:

When I look under the References, I see the following (used ~ to shorten the path):

So to my mind, everything looks like it's .NET 4.7.1 compatible, so why this warning?

Following the details given in NuGet Warning NU5128, I therefore added a dependency group:

<?xml version="1.0"?> 
<package >   
    <metadata>
        <id>*******</id>
        <version>*******</version>
        <title>*******</title>
        <authors>*******</authors>
        <owners>*******</owners>
        <requireLicenseAcceptance>false</requireLicenseAcceptance>
        <description>*******</description>
        <releaseNotes>*******</releaseNotes>
        <copyright>*******</copyright>
        <tags>*******</tags>
        <dependencies>
          <group targetFramework=".NETFramework4.7.1" />
        </dependencies>
   </metadata> 
</package>

But this has no effect, I still get the error.

Solution

  • As per NU5128 doc, This warning was added during NuGet 5.3's development, and first was available in .NET Core SDK 3.0 Preview 9. NuGet/Home#8583 tracks an issue where the warning was being raised in too many scenarios. You can use the NoWarn MSBuild property (add $(NoWarn);NU5128 to any PropertyGroup in your project file). If you have multiple projects affected, you can use Directory.Build.targets to automatically add NoWarn to all projects

    Add Nowarn to the project