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Failed to find or load the registered .net framework data provider for sqlite

While using “sqlite” one can encounter error “failed to find or load the registered .net framework data provider.”

We can solve the issue by taking care of following things:

Fix your DbProviderFactories entry in the config file (i.e. web.config or app.config) to reference the full (version and public key information) assembly name instead of the partial assembly name. A full reference allows .NET to search the GAC for SQLite.
Here's a "full" reference example:

  <add name="SQLite Data Provider" invariant="System.Data.SQLite"
       description=".Net Framework Data Provider for SQLite"
       type="System.Data.SQLite.SQLiteFactory, System.Data.SQLite, Version=, Culture=neutral,PublicKeyToken=db937bc2d44ff139"/>

However, if you're deploying to a production machine without access to the machine's GAC or the ability to register a provider on the GAC on the destination machine, then add reference of SQLite dll in your application as:

Right-click on "bin" -> select "Add Existing item", then browse for System.Data.SQLite.DLL and add it. Now you can leave the partial reference in the config file like you had it before, and SQLite's DLL gets copied out to the webserver when you deploy.

Note: If you want to install SQLite package on your local system for testing, download and install from here. Setup is available for all .Net Framework versions and includes all necessary dlls. 

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