Getting compilation error after opening the project in unity

[JoyalJos]

Downloaded the project and added the scripting symbols mentioned in the instruction . But i am still getting some compilation errors

Assets/NLua/GenerateEventAssembly/CodeGeneration.cs(441,32): error CS0246: The type or namespace name 'TypeBuilder' could not be found (are you missing a using directive or an assembly reference?)
Assets/NLua/GenerateEventAssembly/CodeGeneration.cs(63,11): error CS0246: The type or namespace name 'AssemblyBuilder' could not be found (are you missing a using directive or an assembly reference?)
Assets/NLua/GenerateEventAssembly/CodeGeneration.cs(64,11): error CS0246: The type or namespace name 'ModuleBuilder' could not be found (are you missing a using directive or an assembly reference?)

[jurek1029]

Try switching your configuration to .net3.5 in unity project. Worked for me

[codematters68]

Thank you @jurek1029 . Worked for me too!

[aleaf-s]

this worked for me too! ,thank you! @jurek1029