Log SOAP request and response in some Location

Hi All,
I have a requirement to log SOAP Request and SOAP Response in some location(Ex. C Drive). But I am getting error .
When I perform, Launch TestRunner--->Select Reports Tab--->Select/Check Export All and output directory.I am getting lot of error in the log file.

Configuring log4j from [C:\Program Files\SmartBear\SoapUI-5.3.0\bin\soapui-log4j.xml]
log4j:ERROR setFile(null,true) call failed.

Code Flow:
1. Project1
1. Suite1->Test Cases1->Test Step1(sample.groovy). Here I am trying to run Launch Test Runner.

The above script automatically creates Suite2->Test Case2->Test Step2 and executes the test steps in the same project.

2. Suite2->Test Case2->Test Step2->Execute Test Steps.(This suite will be created by sample.groovy)

I need to log soap request and response in some location without using Groovy code. Would any one assist on this please?

Thanks

Darla