WPF, C#, SQLite, Exeption Unhandled.

So im working on a small project, a simple login form, with SQLite database, im following a old guide (2013) so i had to include this in my [login to view URL] <configuration> <startup useLegacyV2RuntimeActivationPolicy="true"> <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0,Profile=Client"/> </startup> Still i get this Exception Unhandled when trying to "login" : [login to view URL]: 'Could not load file or assembly '[login to view URL], Version=1.0.66.0, Culture=neutral, PublicKeyToken=db937bc2d44ff139' or one of its dependencies. An attempt was made to load a program with an incorrect format.' I have tried to set the project target to X86 platform. Still didnt work, so i would need some help on this issue. Thank you for reading.