Hi Boris,
The error "Failed to refresh access token" means that your refreshToken is
probably expired. There might be an issue with your OAuth2 Credentials. I
would recommend to regenerate a new set of credentials by following this
guide <https://developers.google.com/adwords/api/docs/guides/authentication>
and
update your ads.properties with the newly created credentials.
After this, you could retry making your service calls. If it still does not
work, kindly provide the error logs so I could investigate this further.
Regards,
Dannison
AdWords API Team
On Friday, January 4, 2019 at 5:33:01 AM UTC+8, bberlin wrote:
>
> Hello, we are migrating from AdWords API v201708 to v201809.
>
> We do uninstall NuGet v201708 and installed v201809, and replaced
> "using" -s to v201809.
>
> The build passed without any errors or warnings. However when we run the
> code we got an the run-time shows an error of
>
> "AdsOAuthException: Failed to refresh access token" ( I put the full
> Exception stack dump below).
>
> Why do we have it , if the same code at the same time now , linked with
> v201708 works out without any errors.
>
> I also put the code snippet below the Exception stack dump in order to
> show the idea if the call,
>
> in spite it should not be much matter, since the same works out for v201708
> .
>
> Regards,
>
> Boris
>
> == *Exception stack * ===============
>
> Google.Api.Ads.Common.Lib.AdsOAuthException: Failed to refresh access token.
> ---> System.AggregateException: One or more errors occurred. --->
> Google.Apis.Auth.OAuth2.Responses.TokenResponseException:
> Error:"invalid_client", Description:"The OAuth client was not found.", Uri:""
> at
> Google.Apis.Auth.OAuth2.Requests.TokenRequestExtenstions.<ExecuteAsync>d__0.MoveNext()
> --- End of stack trace from previous location where exception was thrown ---
> at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task
> task)
> at
> System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
> task)
> at
> Google.Apis.Auth.OAuth2.Flows.AuthorizationCodeFlow.<FetchTokenAsync>d__35.MoveNext()
> --- End of stack trace from previous location where exception was thrown ---
> at
> Google.Apis.Auth.OAuth2.Flows.AuthorizationCodeFlow.<FetchTokenAsync>d__35.MoveNext()
> --- End of stack trace from previous location where exception was thrown ---
> at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task
> task)
> at
> System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
> task)
> at
> Google.Apis.Auth.OAuth2.Flows.AuthorizationCodeFlow.<RefreshTokenAsync>d__31.MoveNext()
> --- End of stack trace from previous location where exception was thrown ---
> at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task
> task)
> at
> System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
> task)
> at
> Google.Apis.Auth.OAuth2.UserCredential.<RefreshTokenAsync>d__16.MoveNext()
> --- End of stack trace from previous location where exception was thrown ---
> at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task
> task)
> at
> System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
> task)
> at
> Google.Apis.Auth.OAuth2.TokenRefreshManager.<RefreshTokenAsync>d__12.MoveNext()
> --- End of stack trace from previous location where exception was thrown ---
> at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task
> task)
> at
> System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
> task)
> at
> Google.Apis.Auth.OAuth2.TokenRefreshManager.<GetAccessTokenForRequestAsync>d__10.MoveNext()
> --- End of inner exception stack trace ---
> at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean
> includeTaskCanceledExceptions)
> at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout,
> CancellationToken cancellationToken)
> at
> Google.Api.Ads.Common.OAuth.AdsOAuthProviderImpl.GetAccessTokenForAuthorizationCodeFlow()
> at
> Google.Api.Ads.Common.OAuth.AdsOAuthProviderImpl.RefreshAccessTokenInOfflineMode()
> --- End of inner exception stack trace ---
>
> Server stack trace:
> at
> Google.Api.Ads.Common.OAuth.AdsOAuthProviderImpl.RefreshAccessTokenInOfflineMode()
> at Google.Api.Ads.Common.OAuth.AdsOAuthProviderImpl.RefreshAccessToken()
> at Google.Api.Ads.Common.OAuth.AdsOAuthProviderImpl.GetAuthHeader()
> at
> Google.Api.Ads.Common.OAuth.OAuthClientMessageInspector.BeforeSendRequest(Message&
> request, IClientChannel channel)
> at
> System.ServiceModel.Dispatcher.ImmutableClientRuntime.BeforeSendRequest(ProxyRpc&
> rpc)
> at
> System.ServiceModel.Channels.ServiceChannel.PrepareCall(ProxyOperationRuntime
> operation, Boolean oneway, ProxyRpc& rpc)
> at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean
> oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs,
> TimeSpan timeout)
> at
> System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage
> methodCall, ProxyOperationRuntime operation)
> at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage
> message)
>
> Exception rethrown at [0]:
> at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage
> reqMsg, IMessage retMsg)
> at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData&
> msgData, Int32 type)
> at
> Google.Api.Ads.AdWords.v201809.ManagedCustomerServiceInterface.get(Selector
> serviceSelector)
> at Google.Api.Ads.AdWords.v201809.ManagedCustomerService.get(Selector
> serviceSelector)
>
> == ======
>
> === * Code snippet* --
>
> using Google.Api.Ads.AdWords.Lib;
> using Google.Api.Ads.AdWords.Util.Reports;
> using Google.Api.Ads.AdWords.v201809;
> using Google.Api.Ads.Common.Lib;
> using Google.Api.Ads.Common.Util.Reports;
>
> ........
>
> ........
>
> // Get the ManagedCustomerService.
> ManagedCustomerService managedCustomerService =
> (ManagedCustomerService)m_st_adUser.GetService(
> AdWordsService.v201809.ManagedCustomerService);
>
> // Create selector.
> Selector selector = new Selector();
> selector.fields = new String[] {
> ManagedCustomer.Fields.CustomerId, ManagedCustomer.Fields.Name
> };
> selector.paging = Paging.Default;
>
> // Map from customerId to customer node.
> Dictionary<long, ManagedCustomerTreeNode>
> customerIdToCustomerNode =
> new Dictionary<long, ManagedCustomerTreeNode>();
>
> // Temporary cache to save links.
> List<ManagedCustomerLink> allLinks = new
> List<ManagedCustomerLink>();
>
> ManagedCustomerPage page = null;
> try
> {
> do
> {
> page = managedCustomerService.get(selector);
>
> .......
>
>
>
>
>
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