Swift - Getting Error while using replacingOccurrence -

so i'm taking udacity's swift developers course. attempted @ forums question oddly, quiet. programming prompt:

var forwardstring = "stressed" var backwardsstring = forwardstring.characters.reversed() print(backwardsstring)   var lottalikes = "if likeyou wanna learn swift likeyou should build lots of small apps cuz it's likea way practice."  var nolikes = lottalikes.replacingoccurrences(of:"like", with:"") print(nolikes) 

for whatever reason, keep getting error message:

be sure have replaced occurences of word "like" , removed spaces.

what missing here? if need clarification on happy provide it. thank you

it may code gets job done, because variable lottalikes written in weird way. have 2 spaces surrounding word "like" removing word leave 2 spaces in row. suggest writing following line:

var nolikes = lottalikes.replacingoccurrences(of:"like ", with:"") 

it may udacity not checking actual output, code itself. if so, may looking wrote above.

if still not work, may want write line so:

var noextraspaces = nolikes.replacingoccurences(of: "  ", with: " ")