Out-of-the-box Visual Studio Code does not understand the Business Central AL Language syntax. To activate the compiler, an extension needs to be installed in the EXTENSIONS window.
This extension, called AL language, can be downloaded from the Visual Studio Marketplace or installed directly from Visual Studio Code:
![](https://static.packt-cdn.com/products/9781789137798/graphics/assets/b24df939-1de5-41b6-b97b-463424e11444.png)
The Visual Studio Code Marketplace can be found at https://marketplace.visualstudio.com/.