USB taking too much power, disabled.

This is the abbreviated error that I receive when I plug in my daughter's brand new iphone 5 to my 1-year old Mac.  Can anyone help?
Thank you!!

Good Afternoon,
I actually ended up taking the phone into the Sprint store last night, as that is our Carrier, and we had ordered it direct thru them.  I did not take it in for this reason as I thought this was more an Apple situation.  I took it in because the charger would not charge the phone even plugged into the wall.  You had to hold it at a weird angle to get it to charge.  The gentleman took a look at it and said the cord was bad.  He replaced it without even a question.  So, I took it home and my daughter charged the phone completely.  Once that was done I tried it again on my computer and it worked just fine.  So, I am thinking the cord was bad and that is why I got the error message.  I might be wrong but that might be a route for you to check. 
Good Luck!!!  ...  I know that it can be frustrating

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