error in message Mapping(file to file scenario)

Hi friends,

In file to file scenario i am getting error like this while activating standard change list in IR.

Activation of the change list canceled Check result for Message Mapping MM_file2filejuly27 | URN:file2fileJuly27.com:

Starting compilation

Compilation complete

Check result for Software Component Version praba.com | PRABA.COM | 2007 | 0:

The standard error type ExchangeLogData is not defined for the namespace URN:file2fileJuly27.com

Save the software component version definition again. The object is then saved automatically

could you help me out how to correct this error?