Firstly, when I attempt to build a repl of week01 what I get is this

Then when I attempt to use slotToEndPOSIXTime I get this

Any help would be greatly appreciated, thanks! Everything else works great up until this point.

1 Answer 1


It’s because def :: SlotConfig method is not found.

You have to “import Data.Default” first

  • I needed sleep last night and figured it would be a while before anyone answered. Thank you for being so quick! THIS WORKED! Thank you so much!
    – Deceptikon
    Jan 13, 2022 at 13:18

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