Could not install package '--'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.5'

Question

I created this package, I need it in a project but couldn't install it, this error appears:

Could not install package 'Mshwf.NiceLinq 1.0.9'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.5', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author

I don't know why this happen, in another project (Console) I changed the framework to 4.6 and other versions and it wasn't a problem, but this only happen in this project (MVC and Web API):

this is the nuspec file:

<?xml version="1.0"?>
<package >
  <metadata>
    <id>Mshwf.NiceLinq</id>
    <version>1.0.9</version>
    <title>Nice LINQ</title>
    <authors>MShawaf</authors>
    <owners>Mshawaf</owners>
    <projectUrl>https://github.com/mshwf/NiceLinq</projectUrl>
    <iconUrl>https://raw.githubusercontent.com/mshwf/NiceLinq/master/logo.png</iconUrl>
    <requireLicenseAcceptance>false</requireLicenseAcceptance>
    <description>See it as: WHERE ID IN (1, 2, 3, 7, 9, 22, 30, 101)</description>
    <releaseNotes>Minor changes.</releaseNotes>
    <copyright>Copyright 2016</copyright>
    <tags>LINQ IEnumerable Where Contains Search Filter</tags>
  </metadata>
</package>

score 35 · Answer 1 · edited Jun 25 '20 at 15:29

Your package targets NETFramework,Version=v4.5.2. That means the assembly folder is lib\net452. You are trying to install the package to a higher framework (greater than 4.5) project. Create a project with framework 4.5.2 or rename the package's lib folder from net452 to the version which you want to target like net45 or net46.

You can target multiple framework too from a single package.

Edit your csproj file like this:

<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>

Refer here: https://learn.microsoft.com/en-us/nuget/create-packages/supporting-multiple-target-frameworks

For a complete, up-to-date list of target framework names, refer to https://learn.microsoft.com/en-us/nuget/reference/target-frameworks#supported-frameworks

The Mshwf.NiceLinq 1.0.9 package targets .NET 4.5.2 which is why it cannot be installed into .NET 4.5 project. So they would need to create a .NET 4.5.2 project. However your answer is nearly correct. I modified your answer to be correct - hope you do not mind. — Matt Ward, Feb 04 '17 at 18:06

score 33 · Answer 2 · edited Dec 09 '20 at 11:26

33

Go to the folder:

C:\Users\[username]\.nuget\packages\[package name]\1.0.0.4\lib

Rename the folder with the .net version of your project.

Suppose I am using .net framework 4.6.1 my folder name should be net461

edited Dec 09 '20 at 11:26

musefan

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answered Jun 13 '19 at 10:28

Muhammad Aqib

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What's the downside of this method? – Parsa_Gholipour Jun 30 '21 at 13:46
1

This solution is the only working one so far for me in order to workaround Microsoft.ServiceHub.Analyzers package, unable to be installed on a project or with any package using this package as a dependency ! Just added the corresponding target version (for me lib\net472) and then copied the root "untargeted" folder in this new folder, and everything worked like a charm, even for packages that needed this as a dependency, like Microsoft.VisualStudio.Shell.15.0 . Thanks for the trick ! – Guillaume ZAHRA Aug 31 '21 at 16:44
That seems to be the winning solution for me , thank you. – evry1falls Aug 14 '23 at 20:05

score 6 · Answer 3 · answered Apr 28 '19 at 05:23

6

You can install earlier version like : Install-Package AutoMapper -Version 7.0.1

answered Apr 28 '19 at 05:23

M Fa

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score 3 · Answer 4 · answered Mar 14 '21 at 02:22

The .NET Target Framework version is most likely too old. I have VS 2017 and my default Target Framework for a new .NET Framework project was 4.0. I initially tried to install the RestSharp package but it failed with an almost identical message as in this post 'Could not install package ...' However, when I went to Project | Properties | and Application I was able to change the Target Framework to .NET Framework 4.6.1 and then it installed fine.

score 2 · Answer 5 · edited Sep 06 '19 at 11:30

In my case, I was trying to install the package into a WPF App (.Net Framework) while my co-workers prepared the package for .Net Core Project.

Try creating a .Net Core Project(or the type of the targeted project type) and install the packages same way:

Solution Explorer>Right click to Solution>Manage Nuget Packages for solution>Search for the needed package>Install

Checking this before other solutions may save time.

score 0 · Answer 6 · answered Jan 10 '18 at 22:39

In my case, I was trying to insert a package of our own making that we put into our own Nuget feed, so I had access to the project. This is what I did to clear the issue up. In the project solution window, click on the packages.config. In the properties window, change build action to "Content." After pushing it out to our feed again I was able to install it into the main project.

score 0 · Answer 7 · answered Sep 26 '19 at 22:57

I had similar issue which i fixed by removing the packages.config(you can edit the file if you don't want to remove) file and then made sure both the package i was using was built using the same .net version as the Project i was using it in(for me the package was built using 4.6 while my console project was targeting earlier version of .net).

score 0 · Answer 8 · answered Mar 02 '20 at 16:22

Update the Application .NET target framework could solve the problem. In my case, I'm installing EmguCv 4.2 package. I get this same error when trying to build with 4.5.1 .NET target framework. After updated the .NET target framework to 4.6.2, I can install the EmguCv 4.2 Nuget package successfully.

score 0 · Answer 9 · answered Jul 22 '20 at 06:33

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Try installing .net SDK here and then right-click on your solution/project and "restore nuget packages"

answered Jul 22 '20 at 06:33

Samra

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score 0 · Answer 10 · answered Aug 03 '20 at 15:13

I had this problem with a package I had created and hosted on our own private nuget server, but even after trying others suggestions here such as making sure that the package supported the correct .net framework version, it still wouldn't work.

I got someone else to try and they managed to add it with no problem. Today, messing around in VS's options, I found a fix for this: Options -> NuGet Package Manager -> General -> Clear All NuGet Cache(s)

How to clear nuget cache in visual studio

Hopefully this helps someone who was as confused as I was :D

score 0 · Answer 11 · answered Feb 08 '22 at 22:56

In my case I tried to install Itext7 package my project .NET framework was 4.5 I changed my project .NET framework to .NET 4.6.1 by using the following steps then I installed the package successfully :

1- right click the project and click properties
2- Under application tab change the Target framework to the required framework for your package

score 0 · Answer 12 · answered Feb 24 '22 at 10:16

0

I could not install OpenTK package in .NETFramwork app but i had success with .NET Core project

answered Feb 24 '22 at 10:16

Klo

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varsha kukreja · Answer 13 · 2022-08-12T08:39:17.780

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Check the supported version from "C:\Users \ [username] \.nuget\packages
[package name]\1.0.0.4\lib". Go to Project > Right click and select Properties > Application > Target Framework Change the Target Framework to the supported version

In my case supported version is net462 for the library

edited Aug 12 '22 at 08:39

answered Aug 12 '22 at 08:38

varsha kukreja

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Could not install package '--'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.5'

13 Answers13