Visual Studio code fails to press F12 under Mac

VSC By default F12 can see the definition (Go to definition), you can see the definition of the class or method;

However, in a Mac environment, sometimes pressing F12 does not take effect, but the menu bar's Go option is started,
A 2-aspect check is required at this time:

1. VSC for the item is a folder, if you open the file is not within a folder, some properties may not take effect

2. There is no plugin installed for the corresponding language, if you open the VSC has a push plug-in, it is recommended to install:

3. If it is a PHP environment, it is recommended to install: PHP intelephense

If it is a Java environment, it is recommended to install: Java Extension Pack

Visual Studio code fails to press F12 under Mac