silent.xml has error code = 65280.

Problem
 error when trying silent install of weblogic.

Solution:
 The problem was that there was a existing directory for mw_home. If I specified a new directory,
the error got away.

Log:
2011-08-10 10:54:23,779 INFO  [readSilentXML] com.bea.plateng.wizard.installer.c
ommon.parsers.TemplateParser - Silent xml file processed successfully...
2011-08-10 10:54:25,676 ERROR [home] com.bea.plateng.wizard.installer.silent.tas
ks.SilentBEAHomeTask - At least one component must be selected.