# Undefined control sequence \url error [closed]

I got this error while trying to run the latex command:

! Undefined control sequence.
l.10 \newblock Available from: \url
?


Why is it an undefined control sequence?

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## closed as too localized by egreg, Ian Thompson, Werner, Kurt, yo'Dec 4 '12 at 23:37

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Does \usepackage{url} help? – Heiko Oberdiek Dec 4 '12 at 22:51
The undefined control sequence is the last token shown in the error line, in this case \url. – egreg Dec 4 '12 at 23:00
@HeikoOberdiek It does, thanks! – Mika H. Dec 4 '12 at 23:04
I had the same error and searching for my error message resulted in this page as a first hit so this question is indeed relevant, please remove the "closed as too localized" badge. – Gergely Jan 26 at 15:48
The first comment "\usepackage{url}" resolved this problem. – roscoe_casita Mar 9 at 22:58