I am not able to complete my maintenance certification of the challenge relating to "Get Hands-On with an Iterable Variable in For Loops ". As I tried completing the challenge trail with following the instructions, I am receiving following error.

The constructor MyIterable should accept parameter of type List<String>

The output in the test run I am getting the proper result. It looks like there is an issue with the playground itself. 

Is anybody else facing the same issue?

#Trailhead Challenges  #Trailhead-challenges