Question

我一直在寻找一个解决方案。在我的案例中，没有一个答案适用于从PowerShell会话引用（加载？）程序集.NET到app域。

我首先加载引用（前面提到的DLL需要引用它才能工作[Reflection.Assembly]::LoadFile()或[Reflection.Assembly]::LoadFrom()）然后我通过调用Add-Type加载我的.NET DLL。

不幸的是，这不起作用，所以我无法从该DLL创建一些实例。当我使用DLL但没有在正常的C＃项目中附加引用时，我得到相同的错误但是一旦我引用其他程序集并重新编译它就没有错误（我可以确认这是因为我在LinqPad中检查了引用的程序集孔）。

的PowerShell：

[System.Reflection.Assembly]::LoadFile((Get-Item -Path ".\System.Data.SQLite.dll" ).FullName)
Add-Type -Path (Get-Item -Path ".\Connector.dll" ).FullName -ReferencedAssemblies (Get-Item -Path ".\System.Data.SQLite.dll" ).FullName -PassThru | Out-Null
$certMGT = New-Object Connector

该PowerShell脚本的第三行抛出：

New-Object : Exception calling ".ctor" with "0" argument(s): "Failed to find or load the registered .Net Framework Data Provider."
At C:\Repos\Connector\bin\Installer.ps1:306 char:20
+         $certMGT = New-Object Connector
+                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [New-Object], MethodInvocationException
    + FullyQualifiedErrorId : ConstructorInvokedThrowException,Microsoft.PowerShell.Commands.NewObjectCommand

PSMessageDetails      : 
Exception             : System.Management.Automation.MethodInvocationException: Exception calling ".ctor" with "0" argument(s): "Failed to find or load the registered .Net Framework
                         Data Provider." ---> System.Configuration.ConfigurationErrorsException: Failed to find or load the registered .Net Framework Data Provider.
                           at System.Data.Common.DbProviderFactories.GetFactory(DataRow providerRow)
                           at System.Data.EntityClient.EntityConnection.GetFactory(String providerString)
                           at System.Data.EntityClient.EntityConnection.ChangeConnectionString(String newConnectionString)
                           at System.Data.Objects.ObjectContext..ctor(String connectionString, String defaultContainerName)
                           at Connector.Entity.ConnectorDBEntities..ctor(String connectionString)
                           at Connector.DBManager..ctor()
                           at Connector.DAL.ConfigurationDAL..ctor()
                           at Connector.ConnectorConfig..ctor()
                           at Connector.ConnectorCertMGT..ctor()
                           --- End of inner exception stack trace ---
                           at System.Management.Automation.DotNetAdapter.AuxiliaryConstructorInvoke(MethodInformation methodInformation, Object[] arguments, Object[] originalArgumen
                        ts)
                           at System.Management.Automation.DotNetAdapter.ConstructorInvokeDotNet(Type type, ConstructorInfo[] constructors, Object[] arguments)
                           at Microsoft.PowerShell.Commands.NewObjectCommand.CallConstructor(Type type, ConstructorInfo[] constructors, Object[] args)
TargetObject          : 
CategoryInfo          : InvalidOperation: (:) [New-Object], MethodInvocationException
FullyQualifiedErrorId : ConstructorInvokedThrowException,Microsoft.PowerShell.Commands.NewObjectCommand
ErrorDetails          : 
InvocationInfo        : System.Management.Automation.InvocationInfo

LinqPad查询（C＃Program;引用Connector.dll） - 这很好用

void Main()
{
    Assembly.LoadFile(@"C:\Repos\Connector\bin\System.Data.SQLite.dll");
    Connector connector = new Connector();//this also throws exactly the same error if I do not LoadFile as in above line
}

Answer 1

您应该使用Assembly.LoadFrom。相关博文： http://blogs.msdn.com/b/suzcook/archive/2003/09/19/loadfile-vs-loadfrom.aspx http://blogs.msdn.com/b/suzcook/archive/2003/05/29/57143.aspx

加载.NET程序集依赖项不起作用

1 个答案: