i am using postsharp in my project. when i am trying to build the solution i am getting following error .
"The "PostSharp.MSBuild.PostSharp30DetectNativeFrameworkVersion" task could not be loaded from the assembly C:\ProgramData\PostSharp\3.1.49\bin.Release\PostSharp.MSBuild.v3.1.49.Release.dll. Confirm that the <UsingTask> declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask."
How to resolve this?
thank you
I had that exact problem just now. The last thing I changed was adding a post-build event (copy of .dll and .pdb to another directory).
I didn't 'connect' those two events at first, I'm still not sure if there ever was a connection, and instead checked if the PostSharp.MSBuild.v{version}.Release.dll existed - which it didn't in my case. I removed the PostSharp NuGet package from all projects, deleted the package directory and re-installed the package. After that the PostSharp.MSBuild.v{version}.Release.dll did exist but that didn't fix the problem.
I remebered that I had added a postbuild copy event and removed and I restarted my IDE. Only after doing both of those things did I try to build the solution again - which worked.
I added the postbuild event again and hit rebuild which worked as well. So I'm not entirely sure if the problem could've been solved by re-installing the NuGet package and restarting Visual Studio or if there was a problem with the postbuild copy command.
Related
I cloned .NET 5 project, which should be working (unfortunately, I can't provide the project so you could reproduce the problem). I didn't change anything, I just wanted to build it, however, I am getting this error when restoring packages (although the project itself is on different disk, I found out that this is "global-packages" folder):
Could not find a part of the path 'C:\Users\me\.nuget\packages\microsoft.aspnetcore.azureappservices.siteextension\5.0.5\content\store\x64\net5.0\microsoft.extensions.configuration.environmentvariables\5.0.0\lib\netstandard2.0\Microsoft.Extensions.Configuration.EnvironmentVariables.dll'
However, I don't think it is a problem with this particular dll, as my colleague cloned the same project and he is getting the same error, but with different library.
This is what I've already tried doing:
Clearing all nuget cache
Checking "automatically check for missing packages during build in visual studio"
Updating everything I could (VS, nuget..)
Running VS as Administrator
Checking package sources (yes, nuget.org is there)
Adding "add key="repositoryPath" value="$..\..\packages"" into the nuget.config file - this didn't actually create the package folder in the defined path
Clean/rebuild/... everything
I think, that the problem will be in some setting, but I have no idea, where to look :/
Use the command dotnet restore
instead of
dotnet nuget
I recently migrated all my Visual Studio 2013 projects to Visual Studio 2015 and followed the steps documented in this article by Nuget to make sure that automatic package restore is still working, in short
I deleted the Nuget.exe and Nuget.target files from source control and disk
I updated all project files and deleted the sections related to Nuget
I'm experiencing a problem when I'm updating Nuget packages, it is not updating the project references to point to the newest dll versions. I can see that the newest packages was installed though. This problem is also not related to specific packages.
Has anyone else experienced a problem like this?
NuGet package restore does not modify the project files. It just downloads and extracts the NuGet packages to the packages directory.
If you are trying to edit the packages.config file and then have the project's updated you would have to use the Package Manager Console and run:
Update-Package -reinstall
Which will uninstall and install the packages again and update the project's references.
We realized that some of our junior developers only installed the required Nuget packages for ONE project in the solution, they then added references to the required dll's for all other projects by browsing to the physical location of the dll's on disk. This obviously caused the problem because only ONE of the projects in the solution contained entries for Nuget packages in it's packages.config file while the remaining projects in the solution contained none.
When all packages were updated using the Update-Package command only the ONE project containing entries in it's packages.config file were updated with the correct project references.
Even though this is not a Nuget bug and rather a problem caused by inexperience, I logged an issue with Nuget to see if they can improve the software to prevent these types of problems.
So I recently had a very similar issue as well, unfortunately uninstalling and reinstalling did not work. Hopefully this helps anyone else as it was very frustrating.
Steps:
go to or launch the quick launch feature.
type package manager
select "tools->Nuget PackageManager-> Package Manager Settings"
In the options window that pops up. click "Clear All Nuget Cache(s)"
Right click solution and select Restore Nuget Packages.
Hope this helps.
I was facing an issue with NuGet package of Newtonsoft.Json as shown below:
I tried all possible solutions but none of the below mentioned ones worked:
Cleaning solution
Rebuilding solution
Clearing NuGet package cache
Finally I realized it had something to do with .NET Framework version targeted by my C# project. There was some mismatch it seems. The moment I upgraded the .NET Framework version of my project to latest, the Newtonsoft.Json package dependency and its reference came alive instantly.
Something I just noticed, and I'm not sure if this will help you or anyone else reading this, but this issue literally wracked my brain. The problem was that I was installing packages that I had created myself using NuGet Package Explorer on Windows.
It turned out that, I believe after updating NuGet Package Explorer, it was no longer putting DLLs that I included into the lib folder. Once I started manually adding the lib folder back into the package within Package Explorer, and then uploading to NuGet and reinstalling in the consuming project, that the reference would once again start to appear.
I'm not sure what caused this behavior - it could have been my own fault, but I literally just now figured this out - and consequently have to go back and re-do a whole bunch of NuGet package goodness that I've done over the past month. OUCH.
Hope this saves someone at least an ounce of pain.
None of the above worked for me.
What did work, was to edit the project file directly and delete the existing reference. When I reloaded the project, the package then showed up in references as a Nuget package.
I happened to come across the same problem. i tried all the possible solution but found the solution - just open the .proj file in an text editor and check the package Version and the HintPath in the Reference tag. Sometime there is an mismatch correct it then Visual studio will recognize. I hope everyone can save lot of time. Here is an sample to refer
<Reference Include="nunit.framework, Version=3.4.1.0, Culture=neutral, PublicKeyToken=2638cd05610744eb">
<HintPath>..\packages\NUnit.3.4.1\lib\net45\nunit.framework.dll</HintPath>
</Reference>
Migrating to PackageReferences worked for me for the projects that allowed it. My Asp.Net project could not be migrated, so I resorted to manually adding the references to the .csproj file
What can I do to fix this build? Entity Framework was added to this project via NuGet.
All projects compile without issues on local system. But the build fails on Visual Studio Online.
By turning on Diagnostic logging, I am able to trace to this warning which makes my builds failed:
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Microsoft.Common.targets(1605,5): warning MSB3245: Could not resolve this reference. Could not locate the assembly "EntityFramework.SqlServer". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
DO NOT right-click the project and chose "Enable NuGet Package Restore". This is the "old way" of doing package restores as per the Nuget Docs.
Package restoration should happen as part of the build process by default. If it's not (which seems to be the case), you've got a different problem, but there's not enough information to say what.
I am able to resolve this error simply by right clicking at the solution in Solution Explorer and select Enable NuGet Package Restore.
That adds a few more files to my solution and modify a few project files. The build server can then restore the packages at build time and is happy in the end.
So, the error I'm getting when my build server builds my project is:
Package restore is disabled by default. To give consent, open the
Visual Studio Options dialog.
I'm aware of what this error means and how to resolve it. The problem is I cannot change anything on the build server - my company won't allow it. Additionally, creating an environment variable called EnableNuGetPackageRestore and setting it to true is not an option because that involves modifying the build server.
My question is: is it possible to simply check all of the NuGet packages that are part of a solution into source control so then the build server won't have any reason to go out and re-download them? If so, then perhaps you could explain why this error is still happening, when I've verified that all of the NuGet packages (.nupkg) are in the packages folder in source control:
Second Question: Forgive my ignorance, but what is the reason for the "package restore" feature? Is it to ensure that each package is up to date with the latest version of that package? It seems to me that this "feature" should be a setting that shouldn't hinder building a project on a build server. In my mind, if we want the build server to look for newer packages, then sure, do it, otherwise if I have all my packages in source control and we tell the build server somehow to NOT look for newer packages, that sounds reasonable to me.
So, my situation specifically was I downloaded the source code for the actual Nuget site (to create an internal implementation of Nuget in my company), and when I tried to deploy it, that's when I got the error above.
What I had to do was:
Delete the .nuget folder.
Within your file system (not via Visual Studio), modify the .csproj files (delete where it said <packageRestore>true</packageRestore>, as well as where it imported the project that had nuget.targets in the line - just do a "find" for "nuget.targets", and delete all lines that have an import.
Save your .csproj file changes.
Check in your changes into TFS.
Deploy your solution.
I ran into an issue recently with NuGet restore. I added a project dependency (in this case PostSharp) and then enabled restore. I checked in the source, but not the /packages directory (as I shouldn't needed to....right!). When TeamCity or another developer grabs the source and runs MsBuild, they receive the following error:
C:\TeamCity\buildAgent\work\e374975c0264c72e\ProjectName\ProjectName.csproj(70, 3): error MSB4019: The imported project "C:\TeamCity\buildAgent\work\e374975c0264c72e\packages\PostSharp.2.1.5.1\tools\PostSharp.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk.
The problem is, NuGet hasn't run yet to restore/download PostSharp or it's .targets file. This feels like a NuGet bug to me, but wanted to see if others have this same issue.
Anybody have this issue or know the resolution. Yes, I could check-in the /packages directory, but then why use NuGet at all?
Another approach is to modify the <Import> element in question, to make it conditional, e.g.:
<Import Project="$(CodeAssassinTargets)" Condition="Exists($(CodeAssassinTargets))" />
This depends on a new property defined in an earlier <PropertyGroup>. I usually add one at the top of csproj file with other "global" flags, e.g.:
<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<CodeAssassinTargets>$(SolutionDir)packages\CodeAssassin.ConfigTransform.1.1\tools\CodeAssassin.ConfigTransform.targets</CodeAssassinTargets>
<AutoParameterizationWebConfigConnectionStrings>false</AutoParameterizationWebConfigConnectionStrings>
<UseMsdeployExe>true</UseMsdeployExe>
</PropertyGroup>
Then in an appropriate target, like BeforeBuild, give a helpful error message:
<Target Name="BeforeBuild">
<Error Text="CodeAssassin.ConfigTransforms target is missing. It needs to exist at $(CodeAssassinTargets) in order to build this project!" Condition="!Exists($(CodeAssassinTargets))" />
</Target>
With these modifications, the project will load even if the nuget package restore has never been done. If auto package restore is enabled, the first build attempt should clear up the missing target issue, but if it does not, one manual package restore will.
#porterhouse91, have you checked your csproj file to make sure it has been set up with the appropriate build target?
I haven't yet tried the new built-in Package Restore feature, but I'm assuming it works at least somewhat like the previous workflows out there on the interwebs. If that's the case, enabling Package Restore in your solution only affects the projects in your solution at the time you enable it. If you've added a new project (having NuGet dependencies) to the solution since enabling Package Restore, you're gonna need to enable it again.
Another possibility: the previous workflows involved having a .nuget folder that you needed to check in to VCS, so you might need to check that in if it hasn't been checked in yet (if the built-in Package Restore feature does indeed use this approach).
BTW, if this answer is at all helpful, thank Stephen Ritchie -- he asked me to give it a shot for you.
I had a problem like this as well, but I was able to modify the .targets file in the source package to work around it. Basically, RestorePackages is a build target that runs when the project is built. Unfortunately, the package won't even load properly before the imports are satisfied. The only way I know to fix this is to include the .targets file as content and then change the BuildDependsOn property so it restores the packages before it runs your custom tasks.
<PropertyGroup>
<BuildDependsOn Condition="$(BuildDependsOn.Contains('RestorePackages'))">
RestorePackages;
CustomTarget;
$(BuildDependsOn);
</BuildDependsOn>
<BuildDependsOn Condition="!$(BuildDependsOn.Contains('RestorePackages'))">
CustomTarget;
$(BuildDependsOn);
</BuildDependsOn>
</PropertyGroup>
To be clear, this doesn't help with pre-built packages, but if you can build the package again yourself, you can fix it.
I ran into this same issue with Visual Studio 2012 and NuGet packages not checked into source control.
The error:
The imported project "\packages\Microsoft.Bcl.Build.1.0.7\tools\Microsoft.Bcl.Build.targets" was not found.
Confirm that the path in the <Import> declaration is correct, and that the file exists on disk.
I found a msdn writeup on the situation that gave the following workarounds for grabbing a project from source control without the NuGet packages.
Stop using package restore and check-in all package files
Explicitly run package restore before building the project
Check-in the .targets files
I decided to go with option #2, however, NuGet currently (v2.6) does not include a way to install all packges from the packages.config file from within visual studio. Some searching revealed that you need to use the NuGet Command Line to execute the following command before opening Visual Studio (reference).
c:\path\to\nuget.exe install -o packages project-folder\packages.config