Hi I am new to xamarin and have encountered some errors trying to migrate Xamarin to maui and I'm not sure how to solve. I understand that I am supposed to change the [Register] attribute on one of the C# types to a different Java type name. But how do I do that. Any advice would be appreciated.
Error XA4215 The Java type xamarin.essentials.fileProvider is generated by more than one managed type. Please change the [Register] attribute so that the same Java type is not emitted.
Error XA4215 xamarin.essentials.fileProvider generated by: Xamarin.Essentials.FileProvider, Xamarin.Essentials, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
Error XA4215 xamarin.essentials.fileProvider generated by: Microsoft.Maui.Essentials.FileProvider, Microsoft.Maui.Essentials, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
For me I was referencing https://github.com/jamesmontemagno/StoreReviewPlugin which automatically brings in Xamarin Essentials. I think that package needs to be updated to reference Maui Essentials.
Wonder if you have something similar in a package.
Related
I'm absolutely desperate with this.
I wanted to change my Xamarin Forms Project from PLC to .NET Standard (v.1.5) and i made the mistake to change it in the Project options. After changing, i realised it's a bad approach and wanted to restore to PLC. After changing back i cannot build the project anymore as I'm getting 96 compile errors. Every error is saying "Error CS0344"
The type 'GeneratedCodeAttribute' exists in both 'System.Diagnostics.Tools, Version=4.0.0.0,
Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
and 'System, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e'
It says that for basically every CS and XAML file i have in the project. I have no idea what to do to fix this. I searched almost the whole web for a solution and i'm clueless.
Thanks in regards for your help.
Since I upgraded my Xamarin.Forms project to ServiceStack 5, I receive this message:
CS0012 The type "IReturn<>" is defined in an assembly that is not
referenced. You must add a reference to assembly
'ServiceStack.Interfaces, Version=5.0.0.0, Culture=neutral,
PublicKeyToken=02c12cbda47e6587'.
References are already added. I have no idea how to fix this. Is anyone experiencing the same issue?
Edit: I use Xamarin Forms as a Shared Project, if that matters.
I already reinstalled v4.5.14, but the error still comes up.
I noticed I get one line of code underlined. If I understand correctly, the error means that I have two different versions of some library in my solution. However the error doesn't stop the solution from compiling and everything works like it's supposed to work. What is the reason of Visual Studio underlining this line of code? How can I stop this from happening? Where to look for some incoherence?
The exact error is:
Cannot convert instance argument type 'System.Threading.Tasks.Task [mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]' to 'System.Threading.Tasks.Task [System.Threading.Tasks, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]'
I use Nito.AsyncEx v3.0.1 package in a WebApi (v5.2.3 I think) solution which targets .NET Framework 4.5.1. Let me know if you need any more information.
I removed reference to System.Runtime and it seems it fixed the issue. I followed the advices from below question kind of blindly, but it seems it was the same issue.
Problems with references to TPL Dataflow and TPL in VS 2012 RC
I tried to migrate a MvvmCross project to Unified API and got stuck at MvvmCross libraries, as soon as I add them, it fails to compile.
To recreate the issue I simply created a new Unified API empty project and added MvvmCross 3.5 NuGet package. Tried to compile and got these errors:
Setup.cs(8,23): error CS0012: The type 'System.Object' is defined in an assembly that is not referenced. Consider adding a reference to assembly 'System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
DebugTrace.cs(9,27): error CS0012: The type 'System.Enum' is defined in an assembly that is not referenced. Consider adding a reference to assembly 'System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
I'm using Xamarin Studio 5.8 for Mac with Xamarin.iOS 8.8.
Shouldn't this work out-of-the-box? Am I missing something?
EDIT: Created a new solution from scratch and it works as expected, so I guess it should be something related to the solution file.
It seems that deleting bin and obj folders and a Xamarin Studio restart did the trick. Now everything is worked as expected.
i'm begginer in xamarin, but i have to write app. I have to connect to MySQL and update some data. I have written code, whitch works in vs 2013 express, but in Xamarin i have error:
The type 'System.Data.Common.DbConnection' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (CS0012)
What i can do to repair it? - change target framework?
i'm using Mysql.Data.dll
pls for quick answer :)
It says you need to add refference to System.Data. It is located in Xamarin Base Class Libraries. Use right click on Refferences "folder" in Xamarin Studio to add refference.