Flex provides you with control over the output of warning
and debug messages for the application and component compilers.
When you compile, you can enable the message output to help you
to locate and fix problems in your application.
the command-line compiler, the settings that you use to control
messages are defined in the flex-config.xml file or as command-line
You have a high level of control over what compiler messages
are displayed. For example, you can enable or disable messages such
as binding-related warnings in the flex-config.xml file by using
the show-binding-warnings option. The following
example disables these messages in the flex-config.xml file:
You can also set this option on the command line.
For Flash Builder, you set error and warning options in the Compiler
Properties dialog box. To open the Compiler Properties dialog box,
select Project > Properties > Flex Compiler. You can enable
or disable warnings in this dialog box. In addition, you can enter
more specific options such as show-binding-warnings in
the Additional Compiler Arguments field.
If you enable compiler messages, they are written to the console
window (or System.out) by default.
Also in Flash Builder is a separate Eclipse Error Log file. This
file stores messages from the Eclipse environment. The default location
of this log file on Windows XP is c:\Documents and Settings\user_name\workspace\.metadata\.log.
For MacOS and Linux, the default location is also in the workspace
directory, but files and directories that begin with a dot are hidden
by default. As a result, you must make those files visible before
you can view the log file.
For more information on the compiler logging settings, see Viewing warnings and errors.