Develop Reference

No connection could be made because the target machine actively refused it. [::1]:8080 --- C# Selenium Test Using Sikuli

When I use Sikuli in C# Selenium I am getting below error
System.Net.WebException : No connection could be made because the target machine actively refused it. [::1]:8080 (localhost:8080)
----> System.Net.Http.HttpRequestException : No connection could be made because the target machine actively refused it. [::1]:8080 (localhost:8080)
----> System.Net.Internals.SocketExceptionFactory+ExtendedSocketException : No connection could be made because the target machine actively refused it. [::1]:8080
Stack Trace: 
HttpWebRequest.GetResponse()
Screen.MakeRequest(String requestURLExtension, String jsonObject)
Screen.Find(Pattern pattern, Boolean highlight)
Login.StartBrowser() line 57
--HttpRequestException
HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
HttpConnectionPool.AddHttp11ConnectionAsync(HttpRequestMessage request)
TaskCompletionSourceWithCancellation`1.WaitWithCancellation(CancellationToken cancellationToken)
<12 more frames...>
Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
Socket.Connect(EndPoint remoteEP)
Socket.Connect(IPAddress[] addresses, Int32 port)
--- End of stack trace from previous location ---
Socket.Connect(IPAddress[] addresses, Int32 port)
Socket.Connect(String host, Int32 port)
Socket.Connect(EndPoint remoteEP)
<<CreateHttpClient>b__1>d.MoveNext()
--- End of stack trace from previous location ---
HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
Standard Output: 
--Log for this test run can be found at: C:\Users\Sreeram.Potti\OneDrive - EY\Documents\Development\Automation\automation\kimautomation\bin\Debug\net6.0\Sikuli4Net.Client.Logs\log.29-11-20221252.txt--
:::Making Request to Service: http://localhost:8080/sikuli/api/find POST: {"jPattern":{"imagePath":"C:\\Logo\\Logo.jpg","offset_x":0,"offset_y":0,"similar":0.7},"highlight":false}:::
(result has additional output)
This is the code I am used to test. If I remove "s.Click(slogo)" from the code, then it is working fine. But I need to click and confirm the image.
Screen s = new Screen();
Pattern slogo = new Pattern("C:\\Logo\\Logo.jpg");
s.Click(slogo);
This is the package details
enter image description here
I want to check the exact image only loaded or not.

RabbitMQ with SSL: None of the specified endpoints were reachable

I followed this tutorial link and installed Rabbit MQ on Oracle Cloud server. I am able to use Management Plugin in browser. But when I try to push a message via dotnet I am getting this error. Firewall is allowed for ports 5671,5672 and 15672 also in oracle ingress rules."
"RabbitMQ.Client.Exceptions.BrokerUnreachableException: None of the
specified endpoints were reachable\r\n ---> System.AggregateException:
One or more errors occurred. (Connection failed)\r\n --->
RabbitMQ.Client.Exceptions.ConnectFailureException: Connection
failed\r\n ---> System.Net.Sockets.SocketException (11001): No such
host is known.\r\n at
System.Net.NameResolutionPal.ProcessResult(SocketError errorCode,
GetAddrInfoExContext* context)\r\n at
System.Net.NameResolutionPal.GetAddressInfoExCallback(Int32 error,
Int32 bytes, NativeOverlapped* overlapped)\r\n--- End of stack trace
from previous location ---\r\n at
RabbitMQ.Client.Impl.TcpClientAdapter.ConnectAsync(String host, Int32
port)\r\n at RabbitMQ.Client.Impl.TaskExtensions.TimeoutAfter(Task
task, TimeSpan timeout)\r\n at
RabbitMQ.Client.Impl.SocketFrameHandler.ConnectOrFail(ITcpClient
socket, AmqpTcpEndpoint endpoint, TimeSpan timeout)\r\n --- End of
inner exception stack trace ---\r\n at
RabbitMQ.Client.Impl.SocketFrameHandler.ConnectOrFail(ITcpClient
socket, AmqpTcpEndpoint endpoint, TimeSpan timeout)\r\n at
RabbitMQ.Client.Impl.SocketFrameHandler.ConnectUsingAddressFamily(AmqpTcpEndpoint
endpoint, Func2 socketFactory, TimeSpan timeout, AddressFamily family)\r\n at RabbitMQ.Client.Impl.SocketFrameHandler..ctor(AmqpTcpEndpoint endpoint, Func2 socketFactory, TimeSpan connectionTimeout, TimeSpan
readTimeout, TimeSpan writeTimeout)\r\n at
RabbitMQ.Client.ConnectionFactory.CreateFrameHandler(AmqpTcpEndpoint
endpoint)\r\n at
RabbitMQ.Client.EndpointResolverExtensions.SelectOne[T](IEndpointResolver
resolver, Func2 selector)\r\n --- End of inner exception stack trace ---\r\n at RabbitMQ.Client.EndpointResolverExtensions.SelectOne[T](IEndpointResolver resolver, Func2 selector)\r\n at
RabbitMQ.Client.Framing.Impl.AutorecoveringConnection.Init(IEndpointResolver
endpoints)\r\n at
RabbitMQ.Client.ConnectionFactory.CreateConnection(IEndpointResolver
endpointResolver, String clientProvidedName)\r\n --- End of inner
exception stack trace ---\r\n at
RabbitMQ.Client.ConnectionFactory.CreateConnection(IEndpointResolver
endpointResolver, String clientProvidedName)\r\n at "
when trying to run rabbitmq-diagnostics listeners I am getting this error in logs
** Connection attempt from node '' rejected. Invalid challenge reply. **
Can anyone assist me on this issue?

gRPC connect to Concordium blockchain API with C#

I realize that this a rather service specific subject, but I think that the reason for my problem is a general one, since I'm a novice in the gRPC arena.
I'm attempting to call a simple method PeerVersion in the Concordium blockchain gRPC API (https://github.com/Concordium/concordium-grpc-api) from a .NET Core 3.1 app, but I get what seems to be a rather general error in regard to SSL.
I can add that I have testet this call and others with BloomRPC (https://github.com/uw-labs/bloomrpc) and it works just fine.
You wont be able to call the API successfully without access to a Concordium node, but I recon that someone with better insight into gRPC than me, could maybe see what I'm doing wrong.
C# code
static async Task Main(string[] args)
{
using var channel = GrpcChannel.ForAddress("https://192.168.1.18:10001"); // my local node running on the Concordium testnet
var client = new Concordium.P2P.P2PClient(channel);
var metadata = new Grpc.Core.Metadata() // required token for the API
{
{ "authentication", "rpcadmin" }
};
var request = new Concordium.Empty();
var reply = client.PeerVersion(request, metadata);
Console.WriteLine("peer version: " + reply.Value);
Console.WriteLine("press any key to exit...");
Console.ReadKey();
}
When I run this I get the following exception. (Danish text reads "An existing connection was forcibly disconnected by an external host" or something like that).
- $exception {"Status(StatusCode=\"Unavailable\", Detail=\"Error starting gRPC call. HttpRequestException: The SSL connection could not be established, see inner exception. IOException: Unable to read data from the transport connection: En eksisterende forbindelse blev tvangsafbrudt af en ekstern vært.. SocketException: En eksisterende forbindelse blev tvangsafbrudt af en ekstern vært.\", DebugException=\"System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception.
---> System.IO.IOException: Unable to read data from the transport connection: En eksisterende forbindelse blev tvangsafbrudt af en ekstern vært..
---> System.Net.Sockets.SocketException (10054): En eksisterende forbindelse blev tvangsafbrudt af en ekstern vært.
--- End of inner exception stack trace ---
at System.Net.FixedSizeReader.ReadPacketAsync(Stream transport, AsyncProtocolRequest request)
at System.Net.Security.SslStream.ThrowIfExceptional()
at System.Net.Security.SslStream.InternalEndProcessAuthentication(LazyAsyncResult lazyResult)
at System.Net.Security.SslStream.EndProcessAuthentication(IAsyncResult result)
at System.Net.Security.SslStream.EndAuthenticateAsClient(IAsyncResult asyncResult)
at System.Net.Security.SslStream.<>c.<AuthenticateAsClientAsync>b__65_1(IAsyncResult iar)
at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
--- End of stack trace from previous location where exception was thrown ---
at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken)
--- End of inner exception stack trace ---
at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean allowHttp2, CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.GetHttp2ConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.SendWithRetryAsync(HttpRequestMessage request, Boolean doRequestAuth, CancellationToken cancellationToken)
at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
at Grpc.Net.Client.Internal.GrpcCall`2.RunCall(HttpRequestMessage request, Nullable`1 timeout)\")"} Grpc.Core.RpcException
Is anyone able to give me some pointers as to what could be the problem here?
For anyone that knows BloobRPC, here is a screenshot of request and response.

Ah, I got the answer to my problem elsewhere. It turns out that my assumption that the Concordium node requires a secure connection was wrong, in fact it doesn't support secure connections, so the URL was the wrong part.
So to fix the problem, I needed to create the client like this:
// to allow non secure connections
AppContext.SetSwitch("System.Net.Http.SocketsHttpHandler.Http2UnencryptedSupport", true);
using var channel = GrpcChannel.ForAddress("http://192.168.1.18:10001");

Intermittent connection failures when using Google Translation API using the C# API

I am getting intermittent errors when using the Google translation C# APIs. Weirdly enough I never ever get the error on my local PC, it's only when I run it on our Test and Prod servers do I get the error.
The code is straightforward.
var credential = GoogleCredential.FromJson(#"
{
// .....text from my google credentials json file
}");
var client = TranslationClient.Create(credential);
var response = client?.TranslateText("Hello World.", "fr");
The error I get is
System.Net.Http.HttpRequestException: No connection could be made because the target machine actively refused it ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it
at System.Net.Http.ConnectHelper.ConnectAsync(String host, Int32 port, CancellationToken cancellationToken)
--- End of inner exception stack trace ---
at Google.Apis.Http.ConfigurableMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)
at Google.Apis.Auth.OAuth2.Requests.TokenRequestExtenstions.ExecuteAsync(TokenRequest request, HttpClient httpClient, String tokenServerUrl, CancellationToken taskCancellationToken, IClock clock)
at Google.Apis.Auth.OAuth2.ServiceAccountCredential.RequestAccessTokenAsync(CancellationToken taskCancellationToken)
at Google.Apis.Auth.OAuth2.TokenRefreshManager.RefreshTokenAsync()
at Google.Apis.Auth.OAuth2.TokenRefreshManager.ResultWithUnwrappedExceptions[T](Task`1 task)
at System.Threading.Tasks.ContinuationResultTaskFromResultTask`2.InnerInvoke()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location where exception was thrown ---
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot)
--- End of stack trace from previous location where exception was thrown ---
at Google.Apis.Auth.OAuth2.TokenRefreshManager.GetAccessTokenForRequestAsync(CancellationToken cancellationToken)
at Google.Apis.Auth.OAuth2.ServiceAccountCredential.GetAccessTokenForRequestAsync(String authUri, CancellationToken cancellationToken)
at Google.Apis.Auth.OAuth2.ServiceCredential.InterceptAsync(HttpRequestMessage request, CancellationToken cancellationToken)
at Google.Apis.Http.ConfigurableMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)
at Google.Apis.Requests.ClientServiceRequest`1.ExecuteUnparsedAsync(CancellationToken cancellationToken)
at Google.Apis.Requests.ClientServiceRequest`1.Execute()
at Google.Cloud.Translation.V2.TranslationClientImpl.TranslateText(IEnumerable`1 textItems, String targetLanguage, String sourceLanguage, Nullable`1 model)
at Google.Cloud.Translation.V2.TranslationClient.TranslateText(String text, String targetLanguage, String sourceLanguage, Nullable`1 model)
at QuickStart.Main(String[] args)
I suspect the error is in the authentication code. Curiously it seems to work on the servers in spurts, so connects and translates fine for a period of time, and then stops to do so, throwing the aforementioned error.
Do I need a separate key for every server?
As I said before works flawlessly on my PC - Every. Single. Time.
I am on the currently on a basic account, so not sure if there are any thresholds that I am breaching, but could not find anything in the documentation.

The SSL connection could not be established, see inner exception

I have an Integration project, where my RestAPI's call WCF services of other project to do some CRUD operations.
My project is built on .net core 2.2.102. I deployed my project in BETA environment(PROD in my case) and pointed to the PROD URL's of the WCF services. Then I get this error while trying to run a request from my application :
The SSL connection could not be established, see inner exception.
I tried to reproduce it on my local. but it is working fine from my local machine when I am pointing to the BETA URLS of the WCF services.
I checked the firewall settings. I can see those are fine.
What could be the possible root cause for this? I dont have access to BETA so I cannot deploy with trial and error methods. I am attaching the Inner exception stack trace.
2019-02-04 15:03:50.752 -06:00 [Error] - HTTP Request "GET" in ms
System.ServiceModel.CommunicationException: The SSL connection could not be established, see inner exception. ---> System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
--- End of inner exception stack trace ---
at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error)
at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.GetResult(Int16 token)
at System.Net.FixedSizeReader.ReadPacketAsync(Stream transport, AsyncProtocolRequest request)
at System.Net.Security.SslState.ThrowIfExceptional()
at System.Net.Security.SslState.InternalEndProcessAuthentication(LazyAsyncResult lazyResult)
at System.Net.Security.SslState.EndProcessAuthentication(IAsyncResult result)
at System.Net.Security.SslStream.EndAuthenticateAsClient(IAsyncResult asyncResult)
at System.Net.Security.SslStream.<>c.<AuthenticateAsClientAsync>b__47_1(IAsyncResult iar)
at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
--- End of stack trace from previous location where exception was thrown ---
at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken)
--- End of inner exception stack trace ---
at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken)
at System.Threading.Tasks.ValueTask`1.get_Result()
at System.Net.Http.HttpConnectionPool.CreateConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken)
at System.Threading.Tasks.ValueTask`1.get_Result()
at System.Net.Http.HttpConnectionPool.WaitForCreatedConnectionAsync(ValueTask`1 creationTask)
at System.Threading.Tasks.ValueTask`1.get_Result()
at System.Net.Http.HttpConnectionPool.SendWithRetryAsync(HttpRequestMessage request, Boolean doRequestAuth, CancellationToken cancellationToken)
at System.Net.Http.AuthenticationHelper.SendWithAuthAsync(HttpRequestMessage request, Uri authUri, ICredentials credentials, Boolean preAuthenticate, Boolean isProxyAuth, Boolean doRequestAuth, HttpConnectionPool pool, CancellationToken cancellationToken)
at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
at System.Net.Http.DecompressionHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
at System.Net.Http.HttpClient.FinishSendAsyncUnbuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)
at System.ServiceModel.Channels.HttpChannelFactory`1.HttpClientRequestChannel.HttpClientChannelAsyncRequest.SendRequestAsync(Message message, TimeoutHelper timeoutHelper)
--- End of inner exception stack trace ---
at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult result)
at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
at System.ServiceModel.Channels.ServiceChannelProxy.TaskCreator.<>c__DisplayClass1_0.<CreateGenericTask>b__0(IAsyncResult asyncResult)
--- End of stack trace from previous location where exception was thrown ---
at UAL.ATW.External.EzCare.EzCareWcfClient.ExecuteWcfServiceCall[TClient,TResult](TClient client, Func`2 execute) in *********************EzCareWcfClient.cs:line 42
at UAL.ATW.External.EzCare.EzCareWcfClient.Execute[TResult](String operationUniqueId, Func`1 functionToExecute) in *****************************\EzCareWcfClient.cs:line 31
at UAL.ATW.External.EzCare.EzCareManager.GetCompensationsIssuedByAgentIdAsync(AgentID agentId) in *****************EzCareManager.cs:line 48
at UAL.ATW.Compensation.CompensationsFacade.GetCompensationsIssuedByAgentIdAsync(AgentID agentId) in **************************\CompensationsFacade.cs:line 117
at UAL.ATW.Services.ITMC.Host.Controllers.CompensationsController.GetCompensationsIssuedByAgentId(String agentId) in ****************************\Controllers\CompensationsController.cs:line 36
at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeActionMethodAsync()
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeNextActionFilterAsync()
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()
at Microsoft.AspNetCore.Routing.EndpointMiddleware.Invoke(HttpContext httpContext)
at Microsoft.AspNetCore.Routing.EndpointRoutingMiddleware.Invoke(HttpContext httpContext)
at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
at

dotnet dev-certs https --trust
This should pop a dialog asking you if you want to add the cert to your trusted store, which you obviously should accept. You'll need to do this for each project. For example, it's not enough to trust your web app, if that web app is connecting to an API app. You need to do the same thing for the API app so that both certs are trusted.