gdb issues

nniepoo@lousullivan:~/stm32$ sudo apt-get install gdb-arm-none-eabi
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  gdb-arm-none-eabi
0 upgraded, 1 newly installed, 0 to remove and 467 not upgraded.
Need to get 0 B/2,427 kB of archives.
After this operation, 6,354 kB of additional disk space will be used.
(Reading database ... 171140 files and directories currently installed.)
Preparing to unpack .../gdb-arm-none-eabi_7.6.50.20131218-0ubuntu1+1_i386.deb ...
Unpacking gdb-arm-none-eabi (7.6.50.20131218-0ubuntu1+1) ...
dpkg: error processing archive /var/cache/apt/archives/gdb-arm-none-eabi_7.6.50.20131218-0ubuntu1+1_i386.deb (--unpack):
 trying to overwrite '/usr/share/man/man1/gdb.1.gz', which is also in package gdb 7.7-0ubuntu3
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Processing triggers for man-db (2.6.7.1-1) ...
Errors were encountered while processing:
 /var/cache/apt/archives/gdb-arm-none-eabi_7.6.50.20131218-0ubuntu1+1_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
anniepoo@lousullivan:~/stm32$