无法加载文件或程序集 [英] Could not load file or assembly

问题描述

我工作的系统上使用与NHibernate一个SqlServerCe。从我的驱动程序，如果我添加对System.Data.SqlServerCe程序集作为一个参考，我可以创建和运行对数据库就好了查询。当试图使用NHibernate的，不过，我得到以下异常：

第一个机会异常类型'System.IO.FileNotFoundException'在mscorlib.dll发生 其他信息：无法加载文件或程序集System.Data.SqlServerCe或它的某一个依赖。该系统找不到指定的文件。

我跟踪的异常调用的Assembly.Load（System.Data.SqlServerCe），这似乎像它应该工作。对System.Data.SqlServerCe程序集是在GAC（我也试着将其添加为与CopyLocal = true一个本地引用，但没有成功），我可以使用它的成员细，所以为什么我不能显式地加载它？当我在反射器打开装配体，它有麻烦加载System.Transactions的参考（我也试着将它作为一个本地引用，再次无果），因此加载该程序集可能是问题，而不是系统。 Data.SqlServerCe组装。

这是一个共同的问题？系统配置错误，也许？

qualifyAssembly＆GT;

解决方案

显然，这可以通过添加＆LT解决;元素app.config文件。添加以下有我的应用程序流畅运行：

 ＆LT;运行＆GT;
    ＆LT; assemblyBinding的xmlns =瓮：架构 - 微软COM：asm.v1＆GT;
        ＆LT; qualifyAssembly partialName =System.Data.SqlServerCe全名=System.Data.SqlServerCe，版本= 3.5.1.0，文化=中性公钥= 89845dcd8080cc91/＆GT;
    ＆LT; / assemblyBinding＆GT;
＆LT; /运行＆GT;
 

谢谢！

I'm working on a system to use a SqlServerCe with NHibernate. From my driver program, if I add the System.Data.SqlServerCe assembly as a reference, I can create and run queries against a database just fine. When trying to use NHibernate, though, I get the following exception:

A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll Additional information: Could not load file or assembly 'System.Data.SqlServerCe' or one of its dependencies. The system cannot find the file specified.

I've traced the exception to a call to Assembly.Load("System.Data.SqlServerCe"), which seems like it should work. The System.Data.SqlServerCe assembly is in the GAC (I've also tried to add it as a local reference with CopyLocal=true, to no avail), and I can use its members fine, so why can't I explicitly load it? When I open the assembly in Reflector, it has trouble loading the System.Transactions reference (I've also tried adding it as a local reference, again to no avail), so loading that assembly might be the problem, rather than the System.Data.SqlServerCe assembly.

Is this a common problem? System misconfiguration, maybe?

解决方案

Apparently this can be solved by adding a <qualifyAssembly> element to the app.config file. Adding the following has my app running smoothly:

<runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
        <qualifyAssembly partialName="System.Data.SqlServerCe" fullName="System.Data.SqlServerCe, Version=3.5.1.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" />
    </assemblyBinding>
</runtime>

Thanks!

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