有谁知道 Microsoft OData 客户端是否应该在 Xamarin Droid 上运行以及如何运行？
它是 NuGet 包“Microsoft.OData.Client”。
它在控制台应用程序上运行良好，即使程序集包仅包含在 PCL 项目中也是如此。
我一直在尝试通过 OData v4 代码生成器。
在 Xamarin 上运行时，这是我得到的:
System.AggregateException: One or more errors occured
08-28 17:12:35.621 I/MonoDroid(29197): UNHANDLED EXCEPTION: System.AggregateException: One or more errors occured ---> Microsoft.OData.Client.DataServiceQueryException: An error occurred while processing this request. ---> System.InvalidOperationException: An error occurred while processing this request. ---> System.InvalidCastException: Cannot cast from source type to destination type.
08-28 17:12:35.621 I/MonoDroid(29197): at Microsoft.OData.Client.QueryResult.AsyncEndRead (System.Threading.Tasks.Task task, System.Object asyncState) [0x00000] in <filename unknown>:0
08-28 17:12:35.621 I/MonoDroid(29197): --- End of inner exception stack trace ---
08-28 17:12:35.621 I/MonoDroid(29197): at Microsoft.OData.Client.BaseAsyncResult.EndExecute[QueryResult] (System.Object source, System.String method, IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
08-28 17:12:35.621 I/MonoDroid(29197): at Microsoft.OData.Client.QueryResult.EndExecuteQuery[Nitzrech] (System.Object source, System.String method, IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
08-28 17:12:35.621 I/MonoDroid(29197): --- End of inner exception stack trace ---
08-28 17:12:35.621 I/MonoDroid(29197): at Microsoft.OData.Client.QueryResult.EndExecuteQuery[Nitzrech] (System.Object source, System.String method, IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
08-28 17:12:35.621 I/MonoDroid(29197): at Microsoft.OData.Client.DataServiceRequest.EndExecute[Nitzrech] (System.Object source, Microsoft.OData.Client.DataServiceContext context, System.String method, IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
08-28 17:12:35.621 I/MonoDroid(29197): --- End of inner exception stack trace ---
08-28 17:12:35.621 I/MonoDroid(29197): at System.Threading.Tasks.Task.Wait (int,System.Threading.CancellationToken) <IL 0x0004a, 0x0025c>
08-28 17:12:35.621 I/MonoDroid(29197): at System.Threading.Tasks.Task.Wait () <IL 0x00007, 0x00077>
08-28 17:12:35.621 I/MonoDroid(29197): at System.Threading.Tasks.Task`1<System.Collections.Generic.IEnumerable`1<Client.ODataClient.Nitzrech>>.get_Result () <0x0007b>
08-28 17:12:35.621 I/MonoDroid(29197): at Client.DataAccess.NewRepository.GetServerTable<Client.ODataClient.Nitzrech> () <0x00167>
08-28 17:12:35.621 I/MonoDroid(29197): at Client.Droid.MainActivity.OnCreate (Android.OS.Bundle) [0x00032] in c:\Users\Avrohom\Documents\Visual Studio 2013\Projects\OData\Client\Client\Client.Droid\MainActivity.cs:33
08-28 17:12:35.621 I/MonoDroid(29197): at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (intptr,intptr,intptr) [0x00011] in /Users/builder/data/lanes/monodroid-mlion-monodroid-4.14-series/a5d57087/source/monodroid/src/Mono.Android/platforms/android-19/src/generated/Android.App.Activity.cs:2179
08-28 17:12:35.621 I/MonoDroid(29197): at (wrapper dynamic-method) object.aebd8c0d-1bcc-4b67-a482-f6f129f09cca (intptr,intptr,intptr) <IL 0x00017, 0x00043>
08-28 17:12:35.621 I/MonoDroid(29197):
08-28 17:12:35.621 I/MonoDroid(29197): --> (Inner exception 0) Microsoft.OData.Client.DataServiceQueryException: An error occurred while processing this request. ---> System.InvalidOperationException: An error occurred while processing this request. ---> System.InvalidCastException: Cannot cast from source type to destination type.
08-28 17:12:35.621 I/MonoDroid(29197): at Microsoft.OData.Client.QueryResult.AsyncEndRead (System.Threading.Tasks.Task task, System.Object asyncState) [0x00000] in <filename unknown>:0
08-28 17:12:35.621 I/MonoDroid(29197): --- End of inner exception stack trace ---
08-28 17:12:35.621 I/MonoDroid(29197): at Microsoft.OData.Client.BaseAsyncResult.EndExecute[QueryResult] (System.Object source, System.String method, IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
08-28 17:12:35.621 I/MonoDroid(29197): at Microsoft.OData.Client.QueryResult.EndExecuteQuery[Nitzrech] (System.Object source, System.String method, IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
08-28 17:12:35.621 I/MonoDroid(29197): --- End of inner exception stack trace ---
08-28 17:12:35.621 I/MonoDroid(29197): at Microsoft.OData.Client.QueryResult.EndExecuteQuery[Nitzrech] (System.Object source, System.String method, IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
08-28 17:12:35.621 I/MonoDroid(29197): at Microsoft.OData.Client.DataServiceRequest.EndExecute[Nitzrech] (System.Object source, Microsoft.OData.Client.DataServiceContext context, System.String method, IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
An unhandled exception occured.
08-28 17:12:36.661 E/mono (29197):
08-28 17:12:36.661 E/mono (29197): Unhandled Exception:
08-28 17:12:36.661 E/mono (29197): System.AggregateException: One or more errors occured ---> Microsoft.OData.Client.DataServiceQueryException: An error occurred while processing this request. ---> System.InvalidOperationException: An error occurred while processing this request. ---> System.InvalidCastException: Cannot cast from source type to destination type.
08-28 17:12:36.661 E/mono (29197): at Microsoft.OData.Client.QueryResult.AsyncEndRead (System.Threading.Tasks.Task task, System.Object asyncState) [0x00000] in <filename unknown>:0
08-28 17:12:36.661 E/mono (29197): --- End of inner exception stack trace ---
08-28 17:12:36.661 E/mono (29197): at Microsoft.OData.Client.BaseAsyncResult.EndExecute[QueryResult] (System.Object source, System.String method, IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
08-28 17:12:36.661 E/mono (29197): at Microsoft.OData.Client.QueryResult.EndExecuteQuery[Nitzrech] (System.Object source, System.String method, IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
08-28 17:12:36.661 E/mono (29197): --- End of inner exception stack trace ---
08-28 17:12:36.661 E/mono (29197): at Microsoft.OData.Client.QueryResult.EndExecuteQuery[Nitzrech] (System.Object sourc
08-28 17:12:36.671 E/mono-rt (29197): [ERROR] FATAL UNHANDLED EXCEPTION: System.AggregateException: One or more errors occured ---> Microsoft.OData.Client.DataServiceQueryException: An error occurred while processing this request. ---> System.InvalidOperationException: An error occurred while processing this request. ---> System.InvalidCastException: Cannot cast from source type to destination type.
08-28 17:12:36.671 E/mono-rt (29197): at Microsoft.OData.Client.QueryResult.AsyncEndRead (System.Threading.Tasks.Task task, System.Object asyncState) [0x00000] in <filename unknown>:0
08-28 17:12:36.671 E/mono-rt (29197): --- End of inner exception stack trace ---
08-28 17:12:36.671 E/mono-rt (29197): at Microsoft.OData.Client.BaseAsyncResult.EndExecute[QueryResult] (System.Object source, System.String method, IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
08-28 17:12:36.671 E/mono-rt (29197): at Microsoft.OData.Client.QueryResult.EndExecuteQuery[Nitzrech] (System.Object source, System.String method, IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
08-28 17:12:36.671 E/mono-rt (29197): --- End of inner exception stack trace ---
08-28 17:12:36.671 E/mono-rt (29197): at Microsoft.OData.Client.QueryResult.EndExecuteQuery[Nitzrech] (System
In mgmain JNI_OnLoad
The program 'Mono' has exited with code 0 (0x0).
有人有什么建议吗？
问候，
阿夫罗霍姆
最佳答案
我不相信这个包支持 Xamarin - 来自 nuget page :
Targets .NET Core 5, and .NET Portable Lib with support for .NET 4.0, SL 5.0, Win Phone 8, Win Phone 8.1, and Win 8.
我建议向库的开发人员提交问题以获取更多信息，因为如果它支持 Xamarin，它很可能是一个错误:
https://github.com/OData/odata.net/issues
组件商店中有以下组件应该可以工作，尽管它已经更新了一段时间:
关于android - Microsoft OData 客户端 Xamarin 不工作，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/25553547/
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