Comma, ')', or a valid expression continuation expected

I’m doing the tutorials and I have actually copied exactly as what’s in the instructions but i keep getting this error.

"Enumerable.Concat(SpainCityName As Enumerable, LondonCityNames As Enumerable).toList

Erase the fisrt ".

Thanks but still the same error :frowning:

Whats is the value and type of the variables SpainCityName and LondonCityNames?
As its looks like by this link, this error may be related to how the value are being separated.

I would suggest you to user .addRange if you has two lists, i always find list easier to work with

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