I keep getting this warning in my VS2015 solution:
Some NuGet packages were installed using a target framework different from the current target framework and may need to be reinstalled.
The thing is, there are no NuGet packages in my solution. I had one, but I removed it, but I still get this.
Any ideas?
Removing a NuGet package that isn't in my project?
It seems that you have not properly removed that NuGet package.
To resolve this issue, please try to reinstall this package, then uninstall it.
Detailed:
Open the the Package Manager Console by Tools->NuGet Packager Manager->Package Manager Console, and type following command line to reinstall nuget package:
Update-Package -reinstall
After the re-installation is complete, type following command line to uninstall the package in the Package Manager Console:
Uninstall-Package <PackageID>
With this way, the nuget package will be moved from your project. If you have installed that package for multiple project in the solution, please use the uninstall command line for different default project in the Package Manager Console window:
Hope this helps.
Related
I have a project on TFS that is working on everyone else's machine, except mine. When building I get the error that can be seen in the image. "The specified task executable location csc.exe is invalid." currently trying to repair VS 2017 now.
Based on the message, seems the csc.exe is damaged.
Just try below things to narrow down the issue:
Navigate to the Microsoft.Net.Compilers package location, delete
the package folder, then rebuild. Generally the package will be
restored automatically during the build.
YOUR_PROJECT_DIR\packages\Microsoft.Net.Compilers.2.6.1
Uninstall and Re-install the Microsoft.Net.Compilers package:
Open Visual Studio
Go to Tools -> NuGet Package Manager -> Manage NuGet Packages for Solution
Go to Installed tab and find Microsoft.Net.Compilers package
Uninstall the package from your project
Try to build your project now. (Thus it will use the default compiler which lives in the .NET framework folder:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe)
If you really need the Microsoft.Net.Compilers package then go ahead and find it in the Browse tab and install the latest stable
version.
Build the project and if everything works, make sure you commit changes to your code repository.
You can also try to run below command to uninstall and reinstall the
Nuget packages from the Package Manager Console: See Microsoft.Net.Compilers
Uninstall-Package Microsoft.Net.Compilers -Version 2.6.1
Install-Package Microsoft.Net.Compilers -Version 2.6.1
Remove Microsoft.CodeDom.Providers.DotNetCompilerPlatform and Microsoft.Net.Compilers Nuget Packages.
Installing MSBuild 2015 will resolve the issue.
https://www.microsoft.com/en-us/download/confirmation.aspx?id=48159
I hit this question even though my error was "The specified task executable csc.exe could not be run" when pulling down existing web project with unit tests and trying to run it locally for the first time.
I was able to resolve this by building each project individually in my solution.
I have a NuGet Package containing content files that is referenced in my project. When getting latest on a new machine, the build fails because NuGet Restore doesn't copy content files. So what I want to do is this:
In PreBuild
If my Content file doesn't exist,
run this nuget Command: "Update-Package My.Nuget.Sources -reinstall"
I'm struggling with determining path differences due to versioning of the Nuget files and getting access to nuget. How do I actually generate the SourceOnlyNugetVersion and NugetPath variables below?
if not exist "$(ProjectFolder)App_Packages\My.NuGet.Sources.$(SourceOnlyNugetVersion?)\somefile.cs" (
"$(NugetPath)nuget.exe" Update-Package My.NuGet.Sources -reinstall
)
How to resolve Nuget Package Version and Path in Pre-Build Event of a Project?
If you want to reinstall package automatically in Pre-build event, I am afraid you can`t achieve it currently.
We could use the command Update-Package -Id <package_name> –reinstall to reinstall the packages to your project in the Package Manager Console, but it is impossible to automate that.
If you want to automate it in the build event, you have to call the NuGet CLI rather than Package Manager Console. Because NuGet CLI does not modify a project file or packages.config; in this way it's similar to restore in that it only adds packages to disk but does not change a project's dependencies. See NuGet CLI reference.
The operation Install packages on NuGet CLI:
Conversely, operation Install packages on Package Manager:
Installs a package and its dependencies into a project.
So we could not use NuGet CLI to reinstall NuGet packages for project.
Besides, we could not use the Package manager console powershell outside visual studio, because package manager console is providing is access to visual studio objects.
https://github.com/NuGet/Home/issues/1512
Similarly, we could not use Package manager console in the build event, build events are run by MSBuild so it needs to work when the build is run from the command line.
So it seems impossible to automate reinstall NuGet packages, or the alternative approach would be to write a console app that uses NuGet.Core.dll to do the same thing that the PowerShell script is doing.
I modified a solution and deleted one of the .csproj files and instead packaged the .dlls into a NuGet package. Then I added the package to the two other .csproj files that reference the .dlls. All was good - it builds locally, but I can't get it to build on the build server. When I look at the code gotten out of TFS for the build I see that the packages.config for both projects have the correct reference to the NuGet package, but when I open the solution in VS the references have little yellow exclamation marks next to them because they're broken references. The only way I can get it to build is to open the NuGet CMI and execute Uninstall-package package-name and the Install-Package package-name. Then the references are good. When I look in the packages.config of the main project it contains the correct reference to the Package. So I've given up on getting TFS to correctly grab the package, but since Install-Package and Uninstall-Package are CMI commands only I can't automate that (or can I)? Does anyone know if a way that I could automate that to happen after the source is pulled from TFS but before the build?
The yellow exclamation marks issue should be related to the reference path. When you download the source from TFS to another location, the system cannot find the references as the original reference path changed.
So, you need to reinstall the package, you can use the NuGet command line in the Package Manager Console:
Update-Package -reinstall
since Install-Package and Uninstall-Package are CMI commands only I can't automate that (or can I)? Does anyone know if a way that I could automate that to happen after the source is pulled from TFS but before the build?
The simple answer is you can not automate that. You can use the command Install-Package and Uninstall-Package to reinstall the packages to your project in the Package Manager Console, but it seems impossible to automate that. Please forgive me for the lengthy explanation below.
First, we need to know the different the operation Install packages between NuGet CLI and Package Manager, although NuGet CLI and Package Manager both support the operation Install packages.
The operation Install packages on NuGet CLI:
Obviously, NuGet will not reinstall the references when you using the Install-packages operation on the NuGet CLI, just download the package to the packages folder. See NuGet CLI reference：
The install command does not modify a project file or packages.config;
in this way it's similar to restore in that it only adds packages to
disk but does not change a project's dependencies.
Conversely, operation Install packages on Package Manager:
Installs a package and its dependencies into a project.
If you want to automate that, you have to do this operations via NuGet CLI. Since Install package on NuGet CLI will not modify the reference of project, so we could not automate the operation install package to update the reference of the project.
Besides, we also do not recommend you automate that. Once you have automate that, NuGet execute the uninstall/install operations every time before you build the project. We only need to do an uninstall/install the operation after get the project from TFS. Even we do not need to do this operation if the references of the project are not broken after NuGet restore. So according to the reference of the project to determine whether or not to use an command:
Update-Package -reinstall
in the Package Manager Console should be the best choice.
I have a solution of which the references look like this:
The documentation of nuget says I should use nuget.exe restore, which I typed into the package manager console. But I got an error message saying that nuget is not a recognized command.
I have tried these steps:
Visual Studio/ NuGet missing references
But no luck. When I open the project in file explorer and go to the bin folder, all dll's are there, so they aren't missing. What else can I do?
Run this command in the Package Manager Console
Install-Package NuGet.CommandLine
This will install the package for the nuget.exe you need to your solution packages directory
Then run your desired command (nuget.exe restore)
I would like to be able to install all of the NuGet packages in the packages.config, as per The NuGet docs. NuGet is installed as a VS Extension, and I can't seem to find nuget.exe. Is it possible to run:
nuget i packages.config -o Packages
Without maintaining a seperate copy of nuget.exe on a per project basis?
Reinstall all packages in all projects of the current solution:
Update-Package -Reinstall
You can find more information about reinstalling nuget packages here
Warning - using
Update-Package -Reinstall
or
Update-Package -Reinstall -IgnoreDependencies
may remove all of your packages and package.config files!
Always make sure that you have your backups performed first.
Scenario:
Solution with multiple projects
Each contains their own Nuget entries, some with the same packages (e.g., SharpRepository, Entity Framework)
Now copy folder without the packages folder for "distribution" somewhere else
Assume the packages folder wasn't included with the distribution
Now try the command Update-Package -Reinstall or if you have some alpha packages and/or are sure your dependencies are good, try Update-Package -Reinstall -IgnoreDependencies
Result:
Because the packages folder doesn't exist, the entries for your packages methodically go away, too. This can surprise some people - so be careful, is all I'm saying.
As an update to this post, NuGet 1.6 added support for the workflow to restore the packages at build time if missing.
Right-Click on the solution, click "Enable Package Restore Mode" to set it on.
More details at:
http://docs.nuget.org/docs/workflows/using-nuget-without-committing-packages
Found the solution on This blog entry. I needed to install NuGet.CommandLine, which makes nuget.exe. globally available in the VS command line. I can then set this up as a pre-build event to ensure that dependencies are downloaded.
A much easier option that you can keep enabled in Visual Studio during development to ease off your NuGet package installation related pain.
Keep both below mentioned options under NuGet Package Manager > General in checked state -
Allow NuGet to download missing packages
Automatically check for missing packages during build in Visual Studio
Have a look at the screenshot below: