I'm getting the error of the tittle when trying to use XCT TabView.
I'm using Microsoft Visual Studio Community 2022. I installed XCT in my project by running both the commands in NuGet Package Manager Console:
Install-Package Xamarin.CommunityToolkit
Install-Package Xamarin.CommunityToolkit.Markup
In NuGet solution manager I selected both packages, I checked every checkbook responding to my projects and I hit "Install".
I get the following errors and warnings though:
Package restore failed. Rolling back package changes for 'MyProject'.
and
Error NU1605 Detected package downgrade: Xamarin.Forms from 5.0.0.2291 to 5.0.0.2196. Reference the package directly from the project to select a different version.
MyProject -> Xamarin.CommunityToolkit.Markup 2.0.0 -> Xamarin.Forms (>= 5.0.0.2291)
MyProject -> Xamarin.Forms (>= 5.0.0.2196)
I also added the relative namespace to XAML: xmlns:xct="http://xamarin.com/schemas/2020/toolkit
By the way, I get the same error too for xct:TabViewItem but I additionally get another error for it: Cannot resolve type "xct:TabViewItem"
Any ideas?
I had tried to do this and met the same problem as you.
This issue happened because the version of xamarin.forms is too low. So you can open the nuget package manager to update the xamarin.forms to the lastest version.
You can also download the earlier version of the Xamarin.CommunityToolkit and Xamarin.CommunityToolkit.Markup such as 1.3.1
Related
I have used visual studio 2019, I have added some NuGet packages but it's show error like..
Error Could not install package 'Microsoft.Build.Framework 14.3.0'. You are trying to install this package into a project that targets 'MonoAndroid,Version=v9.0', 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.
Note: My Xamarin Binding library(Android) solution target version9.0.
please help me to resolve this issue.
Try by updating your Microsoft.Build.Framework package to the latest version (at the moment it is 16.0.461).
You can check it also here: https://www.nuget.org/packages/Microsoft.Build.Framework/
Once I copied the build task property section from my iOS csproj to my Android csproj.. I got a slightly different message. It asked me to add Microsoft.Build.Utilities.Core.
I then had to add the Microsoft.Win32.Registry 5 nuget then as it tried to install 4.3.0 which my Android project didn't like.
Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light.DarkActionBar', in Xamarine Android . I am using Visual Studio 17.
And also
When i am intalling below package from Nuget Package Manager in Visual Studio 2017 for Xamarine.Android i am getting erorr below.
Error:
Could not install package 'Xamarin.Android.Support.v7.RecyclerView 27.0.2.1'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.6', 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.
It's probably a build issue, clean your solution, delete bin and obj folder and then rebuild, see if it persists.
You can also try restarting VS once.
If it persists you might be missing the Appcompat library, which you can install via nuget.
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 am using a mac with visual studio 2017. I'm trying to start up a project with NuGet packages inside. When I right click on the source and go to update NuGet packages, I receive incompatible errors for 15 of the packages.
Checking compatibility for System.Net.WebSockets 4.0.0 with
.NETCoreApp,Version=v1.1. Incompatible packages: 15 Package restore
failed. Rolling back package changes for 'project.api'.
When I restore packages for the solution, it works successfully. When I go to build the project I get 28 errors. All with the same text -
error CS0234: The type or namespace name '' does not exist in the
namespace 'project.api' (are you missing an assembly reference?)
This issue does not persist on a counterparts Windows machine. I have no idea what to do or where to go.
Side note - unsure where to go to the NuGet package manager then go to package manager settings. This exists on windows but not Mac it seems.
The latest version was not pushed to the repo. This was why I was getting the errors. So the build error is fixed but the update NuGet packages are still incompatible. Not going to worry about that for now.
Seemed to be related to this:
Nuget error install package Microsoft.NETCore.UniversalWindowsPlatform
but it is not, because the checkbox is checked by default in vs2017. I am running the creators update by the way and everything is up-to-date.
I have just started a new C# background IoT project and got this:
When manually installing the package in the package console I got this:
...
Successfully installed 'Microsoft.Net.Native.Compiler 1.6.0' to projectnamehere
Install failed. Rolling back...
Package 'Microsoft.NETCore.Jit.1.0.3' does not exist in project
...
Package 'Microsoft.NETCore.Jit.1.0.3' does not exist in folder
...
Install-Package : Could not install package 'Microsoft.NETCore.Jit 1.0.3'. You are trying to install this package into a project that targets '.NETCore,Version=v5.0', but the package does not contain any assembly references or content files that are compatible with that f
ramework. For more information, contact the package author.
seems related to this https://connect.microsoft.com/VisualStudio/feedback/details/1617801/newly-created-universal-app-projects-dont-work
but I have no idea how to fix it.
I have also seen a website suggesting to remove the project.json file, which I did but did not resolve it.
I have also closed vs2017 and modified the installtion to verify that the creators update sdk was checked and installed.
I have lowered the target version in the project props, but that did not help either.
edit manual install the jit package did not work either:
Could not install package 'Microsoft.NETCore.Jit 1.1.1'. You are trying to install this package into a project that targets '.NETCore,Version=v5.0', 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.
edit2 funny thing is that the solution explorer tells me that there is a project.json while there is none in windows explorer:
I verified the sdk installation by hitting the modify button of the vs2017 installation and tried to create a new project afterwards but got the exact same issue again.
Update: Microsoft updated the templates in their github (https://github.com/ms-iot/samples/commit/2e2aa34ab514b8c0725a53263898a412e0a1be1c) but didn't push it as an updated templates package to Visual Studio yet. Changed the answer accordingly.
Temporary fix:
replace in your .csproj file
<ItemGroup>
<!-- A reference to the entire .Net Framework and Windows SDK are automatically included -->
<None Include="project.json" />
</ItemGroup>
with
<PropertyGroup>
<RestoreProjectStyle>PackageReference</RestoreProjectStyle>
</PropertyGroup>
add the Microsoft.NETCore.UniversalWindowsPlatform package
Optional extra:
Add the Windows IoT Extension SDK via the references dialog
This issue has been fixed for Visual Studio 2017 in updated templates released here: https://marketplace.visualstudio.com/items?itemName=MicrosoftIoT.WindowsIoTCoreProjectTemplatesforVS15