Value cannot be null. (Parameter 'source') - Create Search Request - Issue

[ayaz-ahmed89]

Dear All,

I am getting this issue in qa environment locally it works fine. Request and config all same in local env and qa environment. I am stuck in this check all the possibility but still getting null issue in QA while code reach this line "var data = apiInstance.CreateSearch(requestObj);"

below is request and response.

Request :

private CyberSource.Model.TssV2TransactionsPost201Response CreateCyberSourceSearch(string item)
{
try
{
var requestObj = new CyberSource.Model.CreateSearchRequest()
{
Save = false,
Name = "TSS search",
Timezone = "Asia/Dubai",
Query = string.Format("{0}:{1}", "clientReferenceInformation.code", item),
Offset = 0,
Limit = 10,
Sort = "id:asc, submitTimeUtc:asc"
};

      var configDictionary = new CyberSourceConfiguration(false).GetConfiguration(); 
      var clientConfig = new CyberSource.Client.Configuration(merchConfigDictObj: configDictionary); 
      var apiInstance = new SearchTransactionsApi(clientConfig);
      if (apiInstance != null)
      {
        _logger.LogInformation("apiInstance: " + JsonConvert.SerializeObject(apiInstance.Configuration.ClientId));

      }
      else
      {
           _logger.LogError("apiInstance is null");
      }
      var data = apiInstance.CreateSearch(requestObj);
      if (data != null)
      { 
                    _logger.LogInformation("data: " + JsonConvert.SerializeObject(data));
      }
      else
      { 

_logger.LogError("data is null");
}
return data;
}
catch (Exception ex)
{
_logger.LogError("Exception on calling the API: " + ex.Message);
return null;
}
}

Response :

Error Occurred in CreateSearchRequest method: Value cannot be null. (Parameter 'source')-- at System.Linq.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument) at System.Linq.Enumerable.ToList[TSource](IEnumerable1 source) at CyberSource.Client.ApiClient.CallApi(String path, Method method, Dictionary2 queryParams, Object postBody, Dictionary2 headerParams, Dictionary2 formParams, Dictionary2 fileParams, Dictionary2 pathParams, String contentType, Boolean isResponseMLEForApi) at CyberSource.Api.SearchTransactionsApi.CreateSearchWithHttpInfo(CreateSearchRequest createSearchRequest) at CyberSource.Api.SearchTransactionsApi.CreateSearch(CreateSearchRequest createSearchRequest)