Symbol files

Before we can start creating our extension, we need to perform one more step, that is,downloading the symbol files. The compiler needs the symbol files to determine whether the dependencies are correct. The symbol files contain metadata about other extensions. To download the default symbol files from Business Central, we need to select Al: Download Symbols from the Visual Studio Command Palette:

When the symbol files are downloaded, they are placed in the ,/alpackages folder of your project.