Type: General

Describe the bug

• OS and Version: Ubuntu 18.04
• VS Code Version: 1.30.2
• C/C++ Extension Version: 0.21.0
• Other extensions you installed (and if the issue persists after disabling them):
• A clear and concise description of what the bug is.
  When I use ctrl + F12 to go to a declaration, occur error command 'C_Cpp.GoToDeclaration' not found

I have tried other lower C/C++ Extension Version, it can run correctly. Is there something wrong in version 0.21.0?