我在这个问题上挣扎了很长一段时间，偶尔会发现测试设置不正确。请看这张图片:

我只要取消测试设置，问题就消失了。否则会出现异常。 希望这能帮助到一些人。 不确定这是根本原因。

I got the same problem. However, finally, I can fix it. Currently, I use Visual Studio 2013 Community Edition. I just use Add->Existing Item... and browse to where the SQLite.Data.SQLite files are in (my case is 'C:\Program Files (x86)\System.Data.SQLite\2013\bin'). Please don't forget to change type of what you will include to Assembly Files (*.dll; *.pdb). Choose 'SQLite.Interop.dll' in that folder. From there and then, I can continue without any problems at all. Good luck to you all. ^_^ P.S. I create web form application. I haven't tried in window form application or others yet.

如果您下载了正确的SQLite二进制文件，则根据项目构建选项将SQLite. interop .dll复制到您的发布或调试文件夹中。

升级到Visual Studio 2019版。16.10导致了我的问题，其中msbuild报告了以下System.Data.SQLite.Core-package:

CopySQLiteInteropFiles:
Skipping target "CopySQLiteInteropFiles" because it has no outputs.

https://github.com/dotnet/msbuild/issues/6493

微软表示，该漏洞已被修复。16.10.4. 现在只需要等待AppVeyor更新他们的Visual Studio图像(在此之前，可以使用以前的Visual Studio 2019)。

现在，AppVeyor正在为当前和以前的Visual Studio 2019-image使用破碎的dotnet-build-engine。现在一个必须显式安装dotnet sdk ver。5.0.302:

Invoke-WebRequest -Uri 'https://dot.net/v1/dotnet-install.ps1' -UseBasicParsing -OutFile "$env:temp/dotnet-install.ps1"; & $env:temp\dotnet-install.ps1 -Architecture x64 -Version 5.0.302 -InstallDir "$env:ProgramFiles\dotnet"

这对我来说很管用。

With Visual Studio open, search and install SQLite.Core via the NUGET Package manager. Go to Solution Explorer in VS, Right click your PROJECT NAME-->ADD-->NEW FOLDER Name the folder x64 Repeat the process and add folder and name it x86 Right click the x64 folder-->ADD-->EXISTING ITEM Then browse to the DEBUG FOLDER. You will find the x64 folder. Open it and select the "SQLite.Interop.dll" file then hit OK. Repeat step 5 for the x86 folder. Right click the DLL that you just added and select PROPERTIES. In the option Copy to Output Directory, choose Copy always. Repeat step 7 for both DLLs in x64 and x86 folder.

下次构建该项目并使用另一台计算机时，它应该可以正常工作。

刚刚为我做了这个:在包管理器控制台上安装-Package System.Data.SQLite.Core。