Quickbooks异常&错误(如何判断它们是什么?)

我正在使用Quickbooks PHP SDK。

我正在尝试运行下面的命令:

$res = $dataService->Add($customerObj);

我知道命令现在抛出了一个异常，但我不知道异常是什么，也不知道怎么知道哪里出了问题?

我该怎么做?

注意:我会找出什么是错误的customerObj在我自己，以节省你们的时间，只需要弄清楚如何找出什么错误是返回给我。

更新::这是一个id异常错误，但不知道这是什么意思?

$requestValidator = new OAuthRequestValidator(              
                    gdizDecrypt($qbkeys->oauthtoken),
                    gdizDecrypt($qbkeys->oauthtokensecret), 
                    OAUTH_CONSUMER_KEY, 
                    OAUTH_CONSUMER_SECRET
                );
                $serviceContext     = new ServiceContext($qbkeys->realmid, $qbkeys->datasource, $requestValidator); 
                $dataService        = new DataService($serviceContext);
                $customerObj = new IPPCustomer(); 
                $customerObj->GivenName     = $client->contactfirstname.' '.$client->contactlastname;
                $customerObj->FamilyName    = $client->contactlastname;
                $customerObj->DisplayName   = $client->contactfirstname.' '.$client->contactlastname;   
                $customerObj->PreferredDeliveryMethod   = 'Print';
                $customerObj->BillWithParent            = 'false';
                if($client->active == '')
                {
                    $customerObj->Active                    = (bool)false;
                }
                else
                {
                    $customerObj->Active                    = 'true';
                }
                $phoneObj = new IPPTelephoneNumber();
                $phoneObj->FreeFormNumber = $client->contactphonenumber;
                $emailObj = new IPPEmailAddress();
                $emailObj->Address = $client->contactemail;
                $addrObj = new IPPPhysicalAddress();
                $addrObj->Line1 = $client->contactaddress;
                $customerObj->PrimaryPhone      = $phoneObj;
                $customerObj->PrimaryEmailAddr  = $emailObj;
                $customerObj->BillAddr          = $addrObj;