Valid methods in being highlighted in red 'Unresolved Reference'

Question

How to solve this problem? The program works. But the methods in Gogland are highlighted in red. Qt version 5.8 is added.

Gogland (1.0 Preview) 1.0 EAP
Build #GO         


        

Answer 1

This can also happen if go.mod is copied from another project without updating the project name:

// go.mod

module github.com/org/new-project

go 1.15