c++ - VS code : cannot jump between header file and related cpp file

I have a big c++ project in linux. I try to open this project in VS code in windows using remote ssh. After project loaded, i found it cannot jump between header file and its related cpp files, and also cannot jump to variable definition or implemention.

And i already installed extention c/c++, switcher. But i found right click on a variable, it has only following features. Anyone know how to fix it? This is the first time to use VS code. Thanks!