System.Data.SQLite.dll - System.IO.FileNotFoundException

Question

I use SQLite and works fine on the developer machine (or machine with Visual Studio).

But it does not work on PCs without VS. I "installed" the SQLite manually (32 bit version, added to the references, Copy Local: True). I get "System.IO.FileNotFoundException" System.Data.SQLite.dll exception.

The System.Data.SQLite.dll is in the output folder.

But I can not get it to work only if I install the SQLite with this: https://system.data.sqlite.org/downloads/1.0.105.2/sqlite-netFx46-setup-bundle-x86-2015-1.0.105.2.exe

Dev PC: x64 Win 10, application: x86 only

Please let me know if you need any other information.

Answer 1

Check which dependencies has your executable file (and, maybe, System.Data.SQLite.dll) with Dependency Walker or similar program. Then put these libraries you found into executable's folder one by one, until your executable will work.

Answer 2

You need to make sure the 64 bit C++ runtime DLLs are getting installed. They'll often be on the developer's system but not as often installed by your installer on the target system. Even though this is a .NET assembly, it appears to have C++ underpinnings.