ussue with application.cfc in flash remoting

<cfcomponent

    output="false"

    hint="I define the application settings and event handlers.">

hi, im using flash remoting to call cfcs and I want to use this application.cfc to determine the environment (the APPLICATION.environment defines a DSN used in the cfcs flash calls).

however everytime I call a cfc with this app.cfc I get a error from CF which I can't debug because CF builder is uselss for connecting to debuggers. Any ideas?

    <!--- Define the application. --->

    <cfset this.name = hash( getCurrentTemplatePath() ) />

    <cfset this.applicationTimeout = createTimeSpan( 0, 0, 1, 0 ) />

<cffunction name="onApplicationStart" output="false">

      <cfset path = cgi.SERVER_NAME & cgi.SCRIPT_NAME>

     <cfset serverAnd2Dirs = reFind("([\w-]+/\w+/\w+)",path,0,true)>

    <cfset match = mid(path, serverAnd2Dirs.pos[1], serverAnd2Dirs.len[1])   >

   <cfset var identifier = createObject("component","DomainEnvironmentIdentifier").init(match)>

    <cfset var environment = createObject("component","Environment" ).init(expandPath('/')&"coldfusion\config\environments.xml.cfm")>

      <cfset environment.use( identifier.currentEnvironment() )>

    <cfset APPLICATION.environment = this.environment>

</cffunction>

</cfcomponent>