try to install mysql5 + php5 + apache2

hi i try to install mysql5 + php5 + apache2 like that :

sudo port install mysql5 +server sudo port install php5 +postgresql +pear +apache2 +mysql5 +server

and i have : Error: Target org.macports.activate returned: Image error: /opt/local/include/readline/chardefs.h already exists and does not belong to a registered port. Unable to activate port readline. Error: The following dependencies failed to build: apache2 apr-util sqlite3 readline pcre jpeg libmcrypt libpng libxml2 libxslt mhash postgresql82 bison m4 tiff Error: Status 1 encountered during processing. what can i do thanks