I am new to Xamarin and have created a cross-platform project in Visual Studio 2017.
When I build that project, I am getting the below issue:
Severity: Error
Code: MSB4062
Description: The "Xamarin.Forms.Build.Tasks.XamlGTask" task could not be loaded from the assembly C:\Users\E6430\.nuget\packages\xamarin.forms\3.1.0.637273\build\netstandard2.0\Xamarin.Forms.Build.Tasks.dll. Could not load file or assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The system cannot find the file specified. 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.
Project: TestApp
File: C:\Users\E6430\.nuget\packages\xamarin.forms\3.1.0.637273\build\netstandard2.0\Xamarin.Forms.targets
Line: 84
My NuGet is also get coloured with yellow colour.
Try this:
Unload project from the solution
Restart visual studio and open solution
Reload project
Rebuild
If persist:
Just run Visual studio as Administrator!
Ref: https://forums.xamarin.com/discussion/106784/error-with-latest-nuget-v2-5-0-77-xamarin-forms-build-tasks-gettasksabi-task-could-not-be-loaded
Related
I'm starting to despair. I get the error below on every project I try to build.
Severity Code Description Project File Line Suppression State
Error The "NuGet.Build.Tasks.GetReferenceNearestTargetFrameworkTask" task could not be loaded from the assembly C:\Program Files\Microsoft Visual Studio\2022\Enterprise\Common7\IDE\CommonExtensions\Microsoft\NuGet\NuGet.Build.Tasks.dll. Could not load file or assembly 'Microsoft.Build.Utilities.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The module was expected to contain an assembly manifest. 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.
I have already tried any gacutil commands I have found the error and any other suggestions that have come up on google. Also, completely uninstalling via install clean-up from Visual Studio was unsuccessful.
Does anyone have any other ideas about what I could do?
Visual Studio 2022 version 17.4.4.
Thanks
When I am trying to create a Xamarin project I get the following error:
Could not load the file or assembly 'Xamarin.VisualStudio.Contracts',Version=16.8.4.0, Culture=neutral,
PublicKeyToken=0738eb9f132ed756'3 or one of its dependencies. The system cannot find the file specified
Has anyone managed to build Xamarin Android apps with VS2017 MSBuild and Jenkins?
On our build machine we can build via the command prompt but when building via Jenkins we get this error.
C:\Program Files (x86)\Microsoft Visual
Studio\2017\Professional\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2371,2):
error MSB4062: The "Xamarin.Android.Tasks.GetAndroidPackageName" task
could not be loaded from the assembly C:\Program Files (x86)\Microsoft
Visual
Studio\2017\Professional\MSBuild\Xamarin\Android\Xamarin.Android.Build.Tasks.dll.
Method 'get_BuildEngine' in type 'Xamarin.Android.Tasks.AsyncTask'
from assembly 'Xamarin.Android.Build.Tasks, Version=1.0.0.0,
Culture=neutral, PublicKeyToken=null' does not have an implementation.
Confirm that the 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
We're using a Pipeline script with the following command. The same command works fine with VS2015 MSBuild and Jenkins.
bat "${msbuild15} /consoleloggerparameters:ErrorsOnly /v:quiet
/p:Configuration=ProductionRelease /p:Platform=\"Any CPU\" /t:Rebuild
Field\Product.Android.sln"
GetAndroidPackageName
This task will be failed majorly because your manifest file gets malframed, may be that manifest xml malframed, unncessary charecters might be present.
Remove them And your issue will be solved..
I got the same problem as Build Error + Creating VSTO addin for excel 2010
After making the change according to the solution, I got the new error:
The "InitializeDefaultProperties" task could not be loaded from the
assembly
Microsoft.VisualStudio.Tools.Office.BuildTasks, Version=11.0.0.0,
Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a. Could not load file or
assembly 'Microsoft.VisualStudio.Tools.Office.BuildTasks,
Version=11.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one
of its dependencies. The system cannot find the file specified. 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.
I have installed VS2013 on the same machine so I change version=12.0.0.0 but I got a new error:
Error 2 The "SetInclusionListEntry" task could not be instantiated from
the assembly "Microsoft.VisualStudio.Tools.Office.BuildTasks,
Version=12.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a".
Please verify the task assembly has been built using the same version of
the Microsoft.Build.Framework assembly as the one installed on your
computer and that your host application is not missing a binding redirect
for Microsoft.Build.Framework. Unable to cast object of type Micro
soft.VisualStudio.Tools.Office.BuildTasks.SetInclusionListEntry' to type
'Microsoft.Build.Framework.ITask'.
I know it's an old post, but maybe I have a solution for you...
I ran into exactly the same problem and I have to tell you that the "InitializeDefaultProperties" exception is not fix-able for VS2010.
First of all:
Make sure that your Visual Studio 2010 installation is not modified, anyway make a clean install just to be sure.
If you modified the C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v10.0\OfficeTools\Microsoft.VisualStudio.Tools.Office.targets revert your changes.
If you now try to build your VSTO Project the following error should apppear:
The "FindRibbons" task could not be loaded from the assembly
Microsoft.VisualStudio.Tools.Office.BuildTasks, Version=10.0.0.0,
Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a. Could not load file
or assembly 'Microsoft.VisualStudio.Tools.Office.BuildTasks,
Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or
one of its dependencies. The system cannot find the file specified.
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.
My Solution:
--> Open Visual Studio 2010 (you dont need to load a Project)
--> Go to Help an click About Microsoft Visual Studio
--> Check Version
Microsoft Visual Studio 2010 Version 10.0.40219.1 SP1Rel Microsoft
.NET Framework Version 4.5.51209 SP1Rel
If it says RTMRel download the Microsoft Visual Studio 2010 SP1 from here: http://go.microsoft.com/fwlink/?LinkId=210710
It includes the necessary VSTO and VSTO 4.0 Runtime.
If thats not the Problem, I'm sorry...
As I encountered the same problem upgrading our build server... I am gonna put the solution here in case anyone needs it.
I think the way to solve this is to fix your GAC.
Open the .target file of that tool by notepad and take a look at the UsingTask tag, you should get something like
<UsingTask TaskName="InitializeDefaultProperties" AssemblyName=" Microsoft.VisualStudio.Tools.Office.BuildTasks", Version=11.0.0.0,..., PublicKeyToken=sthsthsth
Then, go to your GAC files, e.g. C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.VisualStudio.Tools.Office.BuildTasks
Then, create a new folder: v4.0_11.0.0.0_sthsthsth,
which is:
v<.NETFramework Version, mostly 4.0>_<Assembly Version>_<PublicKeyToken>
And then, put the .dll file of Microsoft.VisualStudio.Tools.Office.BuildTasks in it.
This dll should be obtained when you install VSTO either by directly install (VSTO2010) or by Visual Studio installer
e.g.
C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\Microsoft\VisualStudio\v15.0\OfficeTools\Microsoft.VisualStudio.Tools.Office.BuildTasks.dll
for Visual Studio 2017 and then directly place the dll inside the folder created
Then this issue should be fixed. Good luck
I am trying to compile some C++/CLI using MSBuild. I am getting an error:
C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppClean.
targets(74,5): error MSB4062: The "CppClean" task could not be loaded from the assembly Microsoft.Build.CppTasks.Common, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a. Could not load file or assembly 'Microsoft.Build.CppTasks.Common, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified. Confirm that the 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.
A colleague of mine has fixed this error by installing Visual Studio 2010 SP1 on his machine, but I already have that installed (as well as Visual Studio 2012 with Update 1) yet am getting this error. I have checked the path from the error message, and both the Microsoft.CppClean.targets and Microsoft.Build.CPPTasks.Common.dll files exist.
The CPPClean task appears to be part of the MSBuild tasks specific to Visual C++. Is there any way to get this as a separate installer so that I can repair it, or as part an installer for another set of tools? Failing that, is there another way of fixing this error?
Prompted by Lanorkin's comment, I checked the GAC and the Microsoft.Build.CppTasks.Common.dll assembly was not in there. I added it manually, and it now builds.