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Hello, <br>
<br>
I have this ; <br>
<br>
-- | The main entry point.<br>
init' :: [a] -> Maybe [a]<br>
init' [] = Nothing<br>
init' [x] = Just [] <br>
init' (x:xs) = Just (x: (init' xs))<br>
<br>
main = print . init' $ [1,2,3]<br>
<br>
and now I see this error message <br>
<br>
<div class="ide-error-span">src/Main.hs@5:26-5:34 </div>
<div class="ide-error-msg"><span>Couldn't match expected type </span>
<div class="CodeMirror cm-s-default" style="font-size: 14px;">[<span
class="cm-variable">a</span>]</div>
<span> with actual type ‘Maybe [a]’
Relevant bindings include xs :: [a] (bound at
/home/app/isolation-runner-work/projects/112785/session.207/src/src/Main.hs:5:10)
x :: a (bound at
/home/app/isolation-runner-work/projects/112785/session.207/src/src/Main.hs:5:8)
init' :: [a] -> Maybe [a] (bound at
/home/app/isolation-runner-work/projects/112785/session.207/src/src/Main.hs:3:1)</span><span
title="Click to show/hide extra information"
class="ide-error-collapse-btn"> …</span></div>
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