What is "one or more errors occurred"

when i update v.2018.3.1 and then like this all my project can someone help me please

Hi @pumraksa,

The problem is that UiPath.Service.Host process (the robot) was not restarted at all after the upgrade.
This can be done by killing the process in task scheduler, restarting the robot tray or logging out/logging in to your windows account.

@ak3430
i try log out/log in but not happen can you teach me please

Hi @pumraksa

Could your restart your machine to make sure that all the UiPath related services have a fresh start?

@loginerror
thank but i try to restart anytime but it not happen

Could you copy paste the logs from the error window in here?

sorry i’m new user how i can get the log from the error window

There is a ‘Copy to Clipboard’ in the error message window. Simply click it and paste the content on the forum as a post :slight_smile:

18.3.1-beta.24+Branch.release/v2018.3.1.Sha.a8ef3c0c3f219dbca5e549cd9e8c9e093e598a93

One or more errors occurred.

System.AggregateException: One or more errors occurred. —> System.ServiceModel.ActionNotSupportedException: The message with Action ‘http://tempuri.org/IUiPathRemoteDuplexContract/IsAlive’ cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, 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 UiPath.Models.IUiPathRemoteDuplexContract.IsAlive()
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.IsAlive(Boolean retrying)
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.b__14_0()
at UiPath.Models.Retry.Do[ResultType](Func1 action, Int32 timeoutMS, Int32 retryCount) --- End of inner exception stack trace --- at UiPath.Models.Retry.Do[ResultType](Func1 action, Int32 timeoutMS, Int32 retryCount)
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.CheckAvailability()
at UiPath.Models.UiPathDuplexProxy.GetRobotConnectionStatus()
at UiPath.Studio.Plugin.Workflow.Services.RobotStudioBridge.Execute(WorkflowDocument document, Boolean isDebugging)
—> (Inner Exception #0) System.ServiceModel.ActionNotSupportedException: The message with Action ‘http://tempuri.org/IUiPathRemoteDuplexContract/IsAlive’ cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, 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 UiPath.Models.IUiPathRemoteDuplexContract.IsAlive()
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.IsAlive(Boolean retrying)
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.b__14_0()
at UiPath.Models.Retry.Do[ResultType](Func`1 action, Int32 timeoutMS, Int32 retryCount)<—

—> (Inner Exception #1) System.ServiceModel.ActionNotSupportedException: The message with Action ‘http://tempuri.org/IUiPathRemoteDuplexContract/IsAlive’ cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, 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 UiPath.Models.IUiPathRemoteDuplexContract.IsAlive()
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.IsAlive(Boolean retrying)
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.b__14_0()
at UiPath.Models.Retry.Do[ResultType](Func`1 action, Int32 timeoutMS, Int32 retryCount)<—

—> (Inner Exception #2) System.ServiceModel.ActionNotSupportedException: The message with Action ‘http://tempuri.org/IUiPathRemoteDuplexContract/IsAlive’ cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, 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 UiPath.Models.IUiPathRemoteDuplexContract.IsAlive()
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.IsAlive(Boolean retrying)
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.b__14_0()
at UiPath.Models.Retry.Do[ResultType](Func`1 action, Int32 timeoutMS, Int32 retryCount)<—

—> (Inner Exception #3) System.ServiceModel.ActionNotSupportedException: The message with Action ‘http://tempuri.org/IUiPathRemoteDuplexContract/IsAlive’ cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, 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 UiPath.Models.IUiPathRemoteDuplexContract.IsAlive()
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.IsAlive(Boolean retrying)
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.b__14_0()
at UiPath.Models.Retry.Do[ResultType](Func`1 action, Int32 timeoutMS, Int32 retryCount)<—

—> (Inner Exception #4) System.ServiceModel.ActionNotSupportedException: The message with Action ‘http://tempuri.org/IUiPathRemoteDuplexContract/IsAlive’ cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, 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 UiPath.Models.IUiPathRemoteDuplexContract.IsAlive()
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.IsAlive(Boolean retrying)
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.b__14_0()
at UiPath.Models.Retry.Do[ResultType](Func`1 action, Int32 timeoutMS, Int32 retryCount)<—

—> (Inner Exception #5) System.ServiceModel.ActionNotSupportedException: The message with Action ‘http://tempuri.org/IUiPathRemoteDuplexContract/IsAlive’ cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, 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 UiPath.Models.IUiPathRemoteDuplexContract.IsAlive()
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.IsAlive(Boolean retrying)
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.b__14_0()
at UiPath.Models.Retry.Do[ResultType](Func`1 action, Int32 timeoutMS, Int32 retryCount)<—

—> (Inner Exception #6) System.ServiceModel.ActionNotSupportedException: The message with Action ‘http://tempuri.org/IUiPathRemoteDuplexContract/IsAlive’ cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, 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 UiPath.Models.IUiPathRemoteDuplexContract.IsAlive()
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.IsAlive(Boolean retrying)
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.b__14_0()
at UiPath.Models.Retry.Do[ResultType](Func`1 action, Int32 timeoutMS, Int32 retryCount)<—

—> (Inner Exception #7) System.ServiceModel.ActionNotSupportedException: The message with Action ‘http://tempuri.org/IUiPathRemoteDuplexContract/IsAlive’ cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, 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 UiPath.Models.IUiPathRemoteDuplexContract.IsAlive()
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.IsAlive(Boolean retrying)
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.b__14_0()
at UiPath.Models.Retry.Do[ResultType](Func`1 action, Int32 timeoutMS, Int32 retryCount)<—

—> (Inner Exception #8) System.ServiceModel.ActionNotSupportedException: The message with Action ‘http://tempuri.org/IUiPathRemoteDuplexContract/IsAlive’ cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, 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 UiPath.Models.IUiPathRemoteDuplexContract.IsAlive()
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.IsAlive(Boolean retrying)
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.b__14_0()
at UiPath.Models.Retry.Do[ResultType](Func`1 action, Int32 timeoutMS, Int32 retryCount)<—

—> (Inner Exception #9) System.ServiceModel.ActionNotSupportedException: The message with Action ‘http://tempuri.org/IUiPathRemoteDuplexContract/IsAlive’ cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, 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 UiPath.Models.IUiPathRemoteDuplexContract.IsAlive()
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.IsAlive(Boolean retrying)
at UiPath.Models.UiPathDuplexProxy.FaultTolerantProxy.b__14_0()
at UiPath.Models.Retry.Do[ResultType](Func`1 action, Int32 timeoutMS, Int32 retryCount)<—

is this ?

Thank you for sharing the logfile.

This issue is common after the update and is typically solved by restarting all the services (or your computer). If that did not work, we will investigate it further.

1 Like

I presume you have updated from 2018.2.4 or 2.3.
You may be running an old UiROBOT version versus the UiStudio is the latest version.
A restart may do the trick but the cause is partly related to the shortcuts created by previous version that invokes older robot.

A quick workaround for me was to invoking UiPath.Studio.exe and UiRobot.exe in 18.3.2 folder.
Hope this helps. Been awhile I’m away from UiPath forum.

UiPath%20issue

Thanks it was helpful. I faced same issue as @pumraksa faced.

3 Likes