package lemonpos 0.9.2-0ubuntu3 failed to install/upgrade: trying to overwrite '/usr/bin/lemon', which is also in package lemon 3.7.4-2ubuntu5

[Novi Detianta]

Binary package hint: lemonpos

Cannot connect database and always crash

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: lemonpos 0.9.2-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
AptOrdering:
 lemonpos: Install
 lemonpos: Configure
Architecture: i386
Date: Mon May 2 03:50:42 2011
DpkgTerminalLog:
 Unpacking lemonpos (from .../lemonpos_0.9.2-0ubuntu3_i386.deb) ...
 dpkg: error processing /var/cache/apt/archives/lemonpos_0.9.2-0ubuntu3_i386.deb (--unpack):
  trying to overwrite '/usr/bin/lemon', which is also in package lemon 3.7.4-2ubuntu5
ErrorMessage: trying to overwrite '/usr/bin/lemon', which is also in package lemon 3.7.4-2ubuntu5
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
SourcePackage: lemonpos
Title: package lemonpos 0.9.2-0ubuntu3 failed to install/upgrade: trying to overwrite '/usr/bin/lemon', which is also in package lemon 3.7.4-2ubuntu5
UpgradeStatus: No upgrade log present (probably fresh install)