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This exception occurs when the <ESB_HOME>/repository/conf/axis2/axis2.xml file does not define any builders and/or formatters that can read the content type of the request received by the ESB. Update the axis2.xml file with a message builder and formatter which that can be used to read the content type of the relevant request in order to overcome this issue. See Configuring Message Relay for instructions on how to configure a message builder and a formatter as required. See Working with Message Builders and Formatters for further information on how to use builders and formatters.
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