hPutStrLn not parsing

If I uncomment the default debug line:

hPutStrLn stderr “Debug Messages …”

the compiler fails to parse hPutStrLn

hPutStrLn should be in System.IO, which I see is imported correctly.

Is it possible to check this please?


It parses, it works OK. What is the exact error you’re getting?

Could you share us, through pastebin, a code where this bug happens (without written code to solve the puzzle :wink: ).

As of now, I just went to Onboarding puzzle, uncommented line:

and it works fine.

Problem seems to have resolved - may have been an indentation error

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