azure - 无法从程序集“Microsoft.WindowsAzure.Storage，版本 = 4.3.0.0”加载类型 'Microsoft.WindowsAzure.Storage.Blob.CloudAppendBlob'

Question

我正在 Azure 数据工厂中运行自定义事件，当我尝试在 CloudAppendBlob 上工作时，会发生以下异常。看起来像是版本问题，但无法找到解决方法。我使用 Windows Azure Storage 7.0.0 编译了代码。请帮忙!

模块中的未知错误:

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeLoadException: Could not load type 'Microsoft.WindowsAzure.Storage.Blob.CloudAppendBlob' from assembly 'Microsoft.WindowsAzure.Storage, Version=4.3.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. at MyDotNetActivity.SampleActivity.Execute(IEnumerable1 linkedServices, IEnumerable1 datasets, Activity activity, IActivityLogger logger) at Microsoft.Azure.Management.DataFactories.Runtime.ActivityExecutor.Execute(Object job, String configuration, Action`1 logAction) --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at Microsoft.DataPipeline.Compute.HDInsightJobExecution.ReflectingActivityWrapper.Execute() in f:_Bld\12752\4106\Sources\Product\Common\Compute\src\HDIComputeDelegatorJob\ReflectingActivityWrapper.cs:line 44 at Microsoft.DataPipeline.Compute.HDInsightJobExecution.JobWrapper.RunJob() in f:_Bld\12752\4106\Sources\Product\Common\Compute\src\HDIComputeDelegatorJob\JobWrapper.cs:line 94 at Microsoft.DataPipeline.Compute.HDInsightJobExecution.Launcher.Main(String[] args) in f:_Bld\12752\4106\Sources\Product\Common\Compute\src\HDIComputeDelegatorJob\Launcher.cs:line 78.

Answer 1

我自己也遇到过同样的问题。事实证明，Azure 数据工厂仅限于 Microsoft.WindowsAzure.Storage 版本 4.3。为了加载不同的版本，您应该查看 Microsoft 的 CrossAppDomainDotNetActivitySample .

来自自述文件:

This sample allows you to author a custom .NET activity for ADF that is not constrained to assembly versions used by the ADF launcher (e.g., WindowsAzure.Storage v4.3.0, Newtonsoft.Json v6.0.x, etc.).

The code includes an abstract base class (CrossAppDomainDotNetActivity) that implements app-domain isolation and a sample derived class (MyDotNetActivity) that demonstrates using WindowsAzure.Storage v6.2.0.

Note: The public types exposed by the ADF SDK are not serializable across app domain boundaries. As such, the derived class must provide pre-execution logic (PreExecute) to process the ADF objects into a serializable object that is then passed to the core logic (ExecuteCore).