错误消息非常明确：找不到DLL程序集文件SQLite.Interop.dll，所以它无法加载，你的应用程序也失败了。



猜测 - 就是这样，我们无法看到你的屏幕，访问你的硬盘或者读懂你的想法 - 你已经构建了你的应用程序并将其复制到另一个地方，或者是另一台机器。并且该机器没有安装DLL。这就是我们使用安装程序的原因：确保所有应用程序依赖项文件与应用程序本身一起正确安装。



创建一个部署项目并使用它来安装应用

Error #1: Unable to load DLL 'SQLite.Interop.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E).


Question: What is causing this problem? And how to fix this issue please let me know the details.

What I have tried:

we are trying to use SQLite database in C# Application, to develop a C# application I am using Visual Studio 2015, System.Data.SQLite Version 1.0.108.
After building the project I am facing the following issue.

The error message is pretty explicit: the DLL assembly file "SQLite.Interop.dll" can't be found, so it can't be loaded and your application fails.

At a guess - and that's all it can be, we can't see your screen, access your HDD, or read your mind - you've built your application and copied it to a different place, orr a different machine. And that machine doesn't have the DLL installed. This is why we use installation programs: to ensure that all the application dependency files are installed correctly alongside the app itself.

Create a Deployment project and use that to install your app.