wpf C# 运行时错误：“由于以下错误，检索具有 CLSID 的组件的 COM 类工厂失败：找不到指定的模块

C# Runtime error: 'Retrieving the COM class factory for component with CLSID failed due to the following error: specified module could not be found

提问by Noble-Surfer

I am developing a C# application in which the main application window has a 'tabbed' display, with each tab providing a different feature of the application.

我正在开发一个 C# 应用程序，其中主应用程序窗口有一个“选项卡式”显示，每个选项卡提供应用程序的不同功能。

I already have working tabs for a built in web browser, and a 'status' page that displays the status of the connection between the application and a remote server.

我已经有内置 Web 浏览器的工作选项卡，以及显示应用程序和远程服务器之间连接状态的“状态”页面。

I am now trying to add another tab that will act as a 'document reader'.

我现在正在尝试添加另一个将充当“文档阅读器”的选项卡。

Before I started trying to add this functionality inside another tab, I wrote a completely separate 'document reader' application, which is fully functioning. My intention is to now 'copy' the C# and XAML from this working standalone document reader into the source for my main application- adding the XAML markup to a 'new tab', and the C# code to the corresponding .xaml.csfile.

在我开始尝试在另一个选项卡中添加此功能之前，我编写了一个完全独立的“文档阅读器”应用程序，该应用程序功能齐全。我现在的目的是将 C# 和 XAML 从这个工作的独立文档阅读器“复制”到我的主应用程序的源代码中——将 XAML 标记添加到“新选项卡”，并将 C# 代码添加到相应的.xaml.cs文件。

In my standalone document reader application, I was using the MoonPDF library to read the PDF documents, and that was working correctly.

在我的独立文档阅读器应用程序中，我使用 MoonPDF 库来阅读 PDF 文档，并且工作正常。

However, after copying the XAML markup, and C# code behind into my existing application, I kept getting DLLNotFoundExceptions, even though I had copied all of the DLLs for the external library to the binfolder of my application.

但是，在将 XAML 标记和 C# 代码复制到我现有的应用程序后，我不断收到DLLNotFoundExceptions，即使我已将外部库的所有 DLL 复制到bin我的应用程序的文件夹中。

I tried working through this for a while, but couldn't seem to get it working, so I have decided to revert my changes.

我尝试解决这个问题一段时间，但似乎无法让它工作，所以我决定恢复我的更改。

However, when I now try to run my original application, having reverted the changes, I get a XamlParseExceptionwhich says:

但是，当我现在尝试运行我的原始应用程序并恢复更改后，我得到一个XamlParseException说：

Exception thrown: 'System.Windows.Markup.XamlParseException' in PresentationFramework.dll

Additional information: 'The invocation of the constructor on type 'Agent.MainWindow' that matches the specified binding constraints threw an exception.' Line number '5' and line position '5'.

抛出异常：PresentationFramework.dll 中的“System.Windows.Markup.XamlParseException”

附加信息：“对与指定绑定约束匹配的类型 'Agent.MainWindow' 的构造函数的调用引发了异常。” 行号“5”和行位置“5”。

When I 'View Detail' on the exception, and inspect the InnerException, it says:

当我在异常上“查看详细信息”并检查 时InnerException，它说：

{"Retrieving the COM class factory for component with CLSID {...} failed due to the following error: 8007007e The specified module could not be found. (Exception from HRESULT: 0x8007007e).":null}

{“由于以下错误，检索具有 CLSID {...} 的组件的 COM 类工厂失败：8007007e 找不到指定的模块。（来自 HRESULT 的异常：0x8007007e）。”：null}

I can't see the PresentationFramework.dllfile anywhere in my folder structure- is that what the issue is here?

我在PresentationFramework.dll文件夹结构中的任何地方都看不到该文件 - 这就是问题所在吗？

When I Google'd the error, I came across the following question on SO: Retrieving the COM class factory for component with CLSID {XXXX} failed due to the following error: 80040154

当我谷歌搜索错误时，我在 SO 上遇到了以下问题：由于以下错误，检索具有 CLSID {XXXX} 的组件的 COM 类工厂失败：80040154

The accepted answer on that question suggests that I should check the project properties, that the platform target is set to 'x86'- I have checked, and it is. The other two most 'upvoted' answers suggest that I may be using a 32-bit process or DLL, and so need to build for 'x86'- I am aware that the MoonPDF library that I am using is 32-bit, and so am already compiling/ running my code for 'x86', rather than 'Any CPU'.

关于该问题的公认答案表明我应该检查项目属性，平台目标设置为“x86” - 我已经检查过，确实如此。另外两个最“赞成”的答案表明我可能正在使用 32 位进程或 DLL，因此需要为“x86”构建 - 我知道我使用的 MoonPDF 库是 32 位的，所以我已经在编译/运行我的“x86”代码，而不是“任何 CPU”。

Are there any other reasons why I might be getting this runtime error? What else can I do to try and resolve it?

我可能会收到此运行时错误还有其他任何原因吗？我还能做些什么来尝试解决它？

回答by StepUp

Just add PresentationFramework.dllto your project where you've taken the exception. It can be done by five steps:

只需添加PresentationFramework.dll到您的项目中您已经例外。它可以通过五个步骤来完成：

1. Right Click of Mouse at the project in Solution Explorer.
2. Select Add -> Reference. The Add Reference dialog box opens.
3. Then Assemblies -> Framework.
4. Choose PresentationFramework
5. Click OK when you have selected you necessary library. Selected reference will appear under the References node of the project.

1. 在Solution Explorer.
2. 选择Add -> Reference。添加引用对话框打开。
3. 然后Assemblies -> Framework。
4. 选择 PresentationFramework
5. 选择必要的库后，单击“确定”。选定的参考将出现在项目的参考节点下。

Update:

更新：

Change in Visual Studio project properties:

Visual Studio 项目属性的更改：

1. Project properties
2. In Build tab
3. Platform target =X86

1. 项目属性
2. 在构建选项卡中
3. 平台目标 =X86