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google / codeworld

Educational computer programming environment using Haskell
http://code.world
Apache License 2.0
1.24k stars 193 forks source link

User-reported unhelpful error message #1645

Open codeworld-feedback opened 1 month ago

codeworld-feedback commented 1 month ago

Program: https://code.world/#P2dClQZizLo7fRzsXcbpDiA

Message:

program.hs:4:10-16: error: 
    • Data constructor not in scope: Picture :: t0 -> t
    • Perhaps you meant variable pictures (defined in the standard library)