As publicly announced yesterday, the February 2019 Developer Preview for Dynamics 365 Business Central launches the first public version of the application where all the base code is converted from C/AL to AL.
If you open the old C/SIDE Development Environment, what you can immediately see is that you’ve only few system tables and system codeunits but no other application objects:
No standard tables, pages, reports, queries, codeunits, XMLports etc. :
Now all the base code is in a single AL extension called BaseApp (actually a monolithic app with about 6000 files):
If you want to create an extension for this new “absolutely alpha” application version and be able to have the symbols, ACTUALLY (and I repeat, actually!!!) you need to do two things:
Your app.json should be:
Now you will be able to have the symbols and (expecially) no strange errors during compilation:
All will be more stable for sure in the next releases (this is a preview ) but with these tricks in mind you will not loose too much time on troubleshooting strange errors from Visual Studio Code.