Doing pkgadd of SUNWplow to /. 
pkgadd: ERROR: unable to create package object </a/usr/openwin/share/locale/de.ISO8859-15>.  
    file type <s> expected <d> actual  
    unable to remove existing directory at </a/usr/openwin/share/locale/de.ISO8859-15> 
.... 
Installation of <SUNWplow> partially failed. 
pkgadd return code = 2   

Doing pkgadd of SUNWpldte to /. 
WARNING: /a/usr/dt/appconfig/types/de.ISO8859-15  
may not overwrite a populated directory. 
...... 
pkgadd: ERROR: /a/usr/dt/appconfig/types/de.ISO8859-15 could not be installed. ....... 
Installation of <SUNWpldte> partially failed. 
pkgadd return code = 2