The imported project C Microsoft CSharp targets was not found

Question

I got this error today when trying to open a Visual Studio 2008 project in Visual Studio 2005      The imported project  C  Microsoft CSharp targets  was not found

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In my case  I opened my  csproj file in notepad and removed the following three lines  Worked like a charm    lt Import Project     packages Microsoft CodeDom Providers DotNetCompilerPlatform 1 0 0 build Microsoft CodeDom Providers DotNetCompilerPlatform props  Condition  Exists     packages Microsoft CodeDom Providers DotNetCompilerPlatform 1 0 0 build Microsoft CodeDom Providers DotNetCompilerPlatform props      gt   lt Import Project     packages Microsoft Net Compilers 1 0 0 build Microsoft Net Compilers props  Condition  Exists     packages Microsoft Net Compilers 1 0 0 build Microsoft Net Compilers props      gt   lt Import Project     packages Microsoft Net Compilers 1 3 2 build Microsoft Net Compilers props  Condition  Exists     packages Microsoft Net Compilers 1 3 2 build Microsoft Net Compilers props      gt

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This link on MSDN also helps a lot to understand the reason why it doesn t work    MSBuildToolsPath  is the path to Microsoft Build Engine v3 5  inserted automatically in a project file when you create in VS2008   If you try to build your project for  Net 2 0  be sure that you changed this path to   MSBuildBinPath  which is the path to Microsoft Build Engine v2 0

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In my case I could not load one out of 5 projects in my solution   It helped to close Visual Studio and I had to delete Microsoft Net Compilers 1 3 2 nuget folder under packages folder   Afterwards  open your solution again and the project loaded as expected  Just to be sure  close all instances of VS before you delete the folder

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Open your csproj file in notepad  or notepad    Find the line     lt Import Project    MSBuildToolsPath  Microsoft CSharp targets    gt    and change it to   lt Import Project    MSBuildBinPath  Microsoft CSharp targets    gt

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I deleted the obj folder and then the project loaded as expected

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For errors with Microsoft WebApplications targets  you can    Install Visual Studio 2010  or the same version as in development machine  in your TFS server  Copy the    Microsoft WebApplication targets    from development machine file to TFS build machine    Here s the post

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If you are to encounter the error that says Microsoft CSharp Core targets not found  these are the steps I took to correct mine    Open any previous working projects folder and navigate to the link showed in the error  that is Projects  working project name  packages Microsoft Net Compilers 1 3 2 tools  and search for Microsoft CSharp Core targets file   Copy this file and put it in the non-working project tools folder  that is  navigating to the tools folder in the non-working project as shown above  Now close your project  if it was open  and reopen it     It should be working now   Also  to make sure everything is working properly in your now open Visual Studio Project  Go to Tools  gt  NuGetPackage Manager  gt  Manage NuGet Packages For Solution  Here  you might find an error that says  CodeAnalysis dll is being used by another application    Again  go to the tools folder  find the specified file and delete it  Come back to Manage NuGet Packages For Solution  You will find a link that will ask you to Reload  click it and everything gets re-installed    Your project should be working properly now

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I used to have this following line in the csproj file    lt Import Project    MSBuildExtensionsPath32  Microsoft VisualStudio v10 0 WebApplications Microsoft WebApplication targets    gt    After deleting this file  it works fine

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After trying to restore  closing VS  deleting the failed package  reopening  trying to restore  multiple times I just deleted everything in packages and when I did a restore and it worked perfectly

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I ran into this issue while executing an Ansible playbook so I want to add my 2 cents here  I noticed a warning message about missing Visual Studio 14  Visual Studio version 14 was released in 2015 and the solution to my problem was installing Visual Studio 2015 Professional on the host machine of my Azure DevOps agent

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This error can also occur when opening a Silverlight project that was built in SL 4  while you have SL 5 installed   Here is an example error message  The imported project  C  Program Files  x86  MSBuild Microsoft Silverlight v4 0 Microsoft Silverlight CSharp targets  was not found   Note the v4 0   To resolve  edit the project and find      lt TargetFrameworkVersion gt v4 0 lt  TargetFrameworkVersion gt    And change it to v5 0   Then reload project and it will open  unless you do not have SL 5 installed

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I got this after reinstalling Windows  Visual Studio was installed  and I could see the Silverlight project type in the New Project window  but opening one didn t work  The solution was simple  I had to install the Silverlight Developer runtime and or the Microsoft Silverlight 4 Tools for Visual Studio  This may seem stupid  but I overlooked it because I thought it should work  as the Silverlight project type was available

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Sometimes the problem might be with hardcoded VS version in  csproj file  If you have in your csproj something like this         VisualStudio v12 0 WebApplications Microsoft WebApplication targets    You should check if the number is correct  the reason it s wrong can be the project was created with another version of Visual Studio   If it s wrong  replace it with your current version of build tools OR use the VS variable         VisualStudio v  VisualStudioVersion  WebApplications Microsoft WebApplication targets

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This is a global solution  not dependent on particular package or bin   In my case  I removed Packages folder from my root directory   Maybe it happens because of your packages are there but compiler is not finding it s reference  so remove older packages first and add new packages   Steps to Add new packages  First remove  packages folder  it will be near by or one step up to your current project folder   Then restart the project or solution  Now  Rebuild solution file  Project will get new references from nuGet package manager  And your issue will be resolved   This is not proper solution  but I posted it here because I face same issue  In my case  I  wasn t even able to open my solution in visual studio and didn t get any help with other SO answers

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For me the issue was that the path of the project contained  20 characters  because git added those instead of spaces when the repository was cloned  Another problem might be if the path to a package is too long

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ok so what if it say this  between the   gt lt signs      Import   Project    MSBuildExtensionsPath  Microsoft Silverlight v3 0 Microsoft Silverlight CSharp targets           how do i fix the targets error    I also found that import string in a demo project  specifically  Build your own MVVM Framework  by Rob Eisenburg    If you replace that import with the one suggested by lomaxx VS2010 RTM reports that you need to install this

[c#] The imported project "C:\Microsoft.CSharp.targets" was not found

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