Dotnet Build

[pizzpea1]

Why do I get so many errors on build?

C:\Users\Mike\Documents\Python.vscode\chlonium\ChloniumUI\ImportMethods.cs(3,19): error CS0234: The type or namespace name 'SQLite' does n
ot exist in the namespace 'System.Data' (are you missing an assembly reference?) [C:\Users\Mike\Documents\Python.vscode\chlonium\ChloniumU
I\ChloniumUI.csproj]
C:\Users\Mike\Documents\Python.vscode\chlonium\ChloniumUI\AesCrypto.cs(2,7): error CS0246: The type or namespace name 'PInvoke' could not
be found (are you missing a using directive or an assembly reference?) [C:\Users\Mike\Documents\Python.vscode\chlonium\ChloniumUI\Chlonium
UI.csproj]
C:\Users\Mike\Documents\Python.vscode\chlonium\ChloniumUI\AesCrypto.cs(5,14): error CS0246: The type or namespace name 'PInvoke' could not
be found (are you missing a using directive or an assembly reference?) [C:\Users\Mike\Documents\Python.vscode\chlonium\ChloniumUI\Chloniu
mUI.csproj]

these are 3 of 8 errors alone