Xcode 15 can't jump to the definition of the JUCE headers

I use Projucer to create a project and open it in Xcode. It builds successfully and runs fine. However, all the code appears as blank white, as if Xcode doesn’t recognize the JUCE code. I can’t jump to the definition of the JUCE headers by Cmd + clicking on header.h. Could someone tell me what I should do to make it work?