Web Core Visual Studio Code (procedure and variables scope)

Some time ago I had to reinstall my ide visual studio and tms Web Core api completely.
Because I was having code completion issues.
I still have these completion problems and the procedure scope in the interface is not respected. Sometimes a correctly declared procedure or function is subject to a warning saying ('Implementation is missing for .......') with the name of the procedure underlined in yellow.

it looks like the ide don't know the path of my program.
the IDE does not give me priority for the data of my program (var or proc or func)

Is there an option to resolve this kind of problem.

I also lost the resolution of my previous IDE installation. The last one is to big.

Thank you