Detected package downgrade: Microsoft.NETCore.App from 2.1.3 to 2.1.0

Question

I try to update my .net solution from .NET Core 1.1 to .NET Core 2.1. I have several .NET Core and .NET standard projects inside, which reference each other and another NuGet packages. After update 'dotnet resore' and 'dotnet build' commands work fine, but when i try to build my solution from visual studio, i get this error:

Error NU1605 Detected package downgrade: Microsoft.NETCore.App from 2.1.3 to 2.1.0. Reference the package directly from the project to select a different version.

And i see that indeed some of my projects have SDK reference to Microsoft.NETCore.App v2.1.0 and some of them v.2.1.3. Setting RuntimeFrameworkVersion and adding this package to dependencies explicitly doesn't work.

How i can deal with this?

UPD: dotnet --info:

.NET Core SDK (reflecting any global.json):  Version:   2.1.401  Commit:    91b1c13032

Runtime Environment:  OS Name:     Windows  OS Version:  10.0.17134  OS Platform: Windows  RID:         win10-x64  Base Path:   C:\Program Files\dotnet\sdk\2.1.401\

Host (useful for support):   Version: 2.1.3   Commit:  124038c13e

.NET Core SDKs installed:
  1.1.10 [C:\Program Files\dotnet\sdk]
  2.0.0 [C:\Program Files\dotnet\sdk]
  2.1.4 [C:\Program Files\dotnet\sdk]
  2.1.100 [C:\Program Files\dotnet\sdk]
  2.1.202 [C:\Program Files\dotnet\sdk]
  2.1.400 [C:\Program Files\dotnet\sdk]
  2.1.401 [C:\Program Files\dotnet\sdk]

.NET Core runtimes installed:   Microsoft.AspNetCore.All 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]   Microsoft.AspNetCore.All 2.1.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]   Microsoft.AspNetCore.App 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]   Microsoft.AspNetCore.App 2.1.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]   Microsoft.NETCore.App
1.0.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]   Microsoft.NETCore.App 1.1.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]   Microsoft.NETCore.App
2.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]   Microsoft.NETCore.App 2.0.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]   Microsoft.NETCore.App
2.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]   Microsoft.NETCore.App 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]   Microsoft.NETCore.App
2.1.3 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]

To install additional .NET Core runtimes or SDKs:   https://aka.ms/dotnet-download

UPD: Somehow issue disappears if i remove this line from .csproj file:

<RuntimeIdentifier>win7-x64</RuntimeIdentifier>

Can it be related?

Solution 1

I had a similar issue to you. Could not publish my project when I specified a runtime identifier.

The solution I got to work was to add in the following line to the *.csproj

<PropertyGroup>     
    <TargetFramework> xxx </TargetFramework>     
    <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>  <<<----- Add this line  
</PropertyGroup>

After that line was added the project would publish correctly.

The below link references a downgrade issue between 2.1.1 and 2.1.0 but the solution worked the same.

https://github.com/dotnet/cli/issues/9624

Solution 2

I had a missing version in the csproj file.

Adding the version fixed the issue.

Solution 3

After updating .net core SDK on my windows machine from .net core 2.1.0 to .net core 2.2.0 I had the same issue. I was unable to build the project and getting build error with Detected package downgrade: Microsoft.AspNetCore.Razor.Design from 2.2.0 to 2.1.0.

I have resolved this issue by updating a nuget package for Microsoft.AspNetCore.Razor.Design

Solution 4

I just experienced this same issue after adding a reference to MySQL.Data.

The only solution was to explicitly define the version of the affected references in the .csproj file:

<PackageReference Include="System.Diagnostics.Debug" Version="4.3.0" />
<PackageReference Include="System.Runtime.Extensions" Version="4.3.0" />
<PackageReference Include="System.Globalization" Version="4.3.0" />
<PackageReference Include="System.Threading" Version="4.3.0" />
<PackageReference Include="System.Net.NameResolution" Version="4.3.0" />
<PackageReference Include="System.IO.FileSystem" Version="4.3.0" />

Solution 5

I had this issue as well. What ultimately fixed it for me was uninstalling the .NET SDK 2.1.3 from the "Programs" control panel. Or I basically had to uninstall any later versions of the related SDK libraries that my project was trying to use.

View more solutions

Comments

[Pat]

This fixed it for me. Strange that Microsoft.AspNetCore.App was already upgraded to 2.2 but [...].Razor.Design was left to 2.1

[Adam Wise]

For some reason, I only needed to apply this to a test project. Other nearly identical projects did not require this.

[Rutix]

This will change the behavior. This way you won't have roll forward anymore, the recommended way by Microsoft is to have a versionless Microsoft.AspNetCore.App and to have the SDK at top be <Project Sdk="Microsoft.NET.Sdk.Web">

[Steve Smith]

Where do you add it in the file?

[oflahero]

@SteveSmith: <PropertyGroup> <TargetFramework> xxx </TargetFramework> <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch> </PropertyGroup>

[William]

You need to update your answer based on the third comment

[Fairuz Sulaiman]

After upgrade my SDK with latest. It works.

[Evgeny Gorb]

IMHO the most correct answer since Microsoft recommends it as a solution: docs.microsoft.com/en-us/nuget/reference/errors-and-warnings‌​/…