I get the following error when formatting a external hard drive. Partition failed with the error:  POSIX reports: The operation couldn't be completed. Cannot allocate memory

I get the following error when formatting a external hard drive.
Partition failed with the error: 
POSIX reports: The operation couldn’t be completed. Cannot allocate memory
I have a Macbook pro 13" A1278. I purchased it around december 2010. I have a HHD 3.5" drive desktop select II 1.5TB. I purchased it around Febuary/March 2011 to use with my Macbook pro. I formatted it and moved all my files to there, I got it so my macbook's hard drive wouldn't brake and I lose everything on my macbook.
Is there any fixes?

First, try a system reset.  It cures many ills and it's quick, easy and harmless...
Hold down the on/off switch and the Home button simultaneously until the screen blacks out or you see the Apple logo.  Ignore the "Slide to power off" text if it appears.  You will not lose any apps, data, music, movies, settings, etc.
If the Reset doesn't work, try a Restore.  Note that it's nowhere near as quick as a Reset.  From iTunes, select the iPad/iPod and then select the Summary tab.  Follow directions for Restore and be sure to say "yes" to the backup.  You will be warned that all data (apps, music, movies, etc.) will be erased but, as the Restore finishes, you will be asked if you wish the contents of the backup to be copied to the iPad/iPod.  Again, say "yes."

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