IntelliJ source code editor shows false compilation errors

intellij-idea scala

In file menu, Invalidate Caches / Restart

also set Incremental Type to SBT in Settings -> Build, Execution, Deployment-> Compiler -> Scala Compiler

Related

from Google import Create_Service ModuleNotFoundError: No module named 'Google'
Automatic height of inner div [duplicate]
write specific hour in a python datetime object [duplicate]
How can I create a Memory<T> from a Span<T>?
"The selected file is not a valid solution file" error when trying to open source safe database
Why is a function declared near the top of a source file?
How to properly write a struct [duplicate]
PyTorch: What's the purpose of saving the optimizer state?
Possible ways to do async over sync
Dynamically changing operator in C
Connecting to db via SSH on docker fails
Coldfusion Mail Service Stuck, Spool Folder Growing