Help need, why synapse is throwing FileUploadException during startup

[Abid Khan]

Hello all,

I would like to know the reason behind why synapse is throwing 
FileUploadException during startup, prompt response will eb appreciated.

[8/2/11 10:22:44:565 MDT] 00000013 ServerManager E 
org.apache.synapse.ServerManager start Synaps startup failed...
                                 
org.apache.axis2.deployment.DeploymentException: 
org.apache.commons.fileupload.FileUploadException
        at 
org.apache.axis2.deployment.AxisConfigBuilder.processMessageBuilders(AxisConfigBuilder.java:741)
        at 
org.apache.axis2.deployment.AxisConfigBuilder.populateConfig(AxisConfigBuilder.java:202)
        at 
org.apache.axis2.deployment.DeploymentEngine.populateAxisConfiguration(DeploymentEngine.java:641)
        at 
org.apache.axis2.deployment.FileSystemConfigurator.getAxisConfiguration(FileSystemConfigurator.java:116)
        at 
org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContext(ConfigurationContextFactory.java:68)
        at 
org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContextFromFileSystem(ConfigurationContextFactory.java:184)
        at org.apache.synapse.ServerManager.start(ServerManager.java:106)


Thanks,
Abid