Unable to use the GetCampaign example in client library in asp.net

[medfos...@gmail.com]

I am trying to use the API example given in the client library using asp.net. i have done all the configuration in webconfig. but unable to use it. when i run the example . it authenticates for access before going to the get-campaigns page. after authorizing with a adwords account, when i enter customer id and click on get campaign then it gives the following error

Error:           Failed to get campaigns. Exception says "An API exception has occurred. See ApiException and InnerException fields for more details."

I have attached a screenshot for the same. 

[Umesh Dengale]

Hello,

Thanks for attaching the error message. Could you please provide the SOAP XML request and response logs? You could enable the logs for the .NET client library.

Thanks,

Umesh, AdWords API Team.