Calling Dynamics Crm Online XrmServiceContext results in an exception - dynamics-crm

Question

I just registered for an online 365 trial version.
I copy-pasted the Walkthrough sample code appearing here, and changed the Url, Username and Password values inside the App.config, so that they have the relevant values.
However, I get an exception when calling xrm.SaveChanges():
Content of exception:
An unhandled exception of type
'Microsoft.Xrm.Sdk.SaveChangesException' occurred in
Microsoft.Xrm.Sdk.dll
Content of Message:
An unsecured or incorrectly secured fault was received from the other
party. See the inner FaultException for the fault code and detail.
Content of Inner Exception:
Code: {System.ServiceModel.FaultCode}, Message: Invalid Request
Stack trace:
at Microsoft.Xrm.Sdk.Client.OrganizationServiceContext.SaveChanges(SaveChangesOptions
options)
at
Microsoft.Xrm.Sdk.Client.OrganizationServiceContext.SaveChanges()
at CRMSimpleConsole1.Program.Main(String[] args) in
C:\Users\home\documents\visual studio
2015\Projects\CRMSimpleConsole1\CRMSimpleConsole1\Program.cs:line 32
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly,
String[] args)
at System.AppDomain.ExecuteAssembly(String
assemblyFile, Evidence assemblySecurity, String[] args)
at
Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at
System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at
System.Threading.ExecutionContext.RunInternal(ExecutionContext
executionContext, ContextCallback callback, Object state, Boolean
preserveSyncCtx)
at
System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state, Boolean
preserveSyncCtx)
at
System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state)
at
System.Threading.ThreadHelper.ThreadStart() I also get an exception
when calling xrm.Create(): An unhandled exception of type
'System.ServiceModel.Security.MessageSecurityException' occurred in
mscorlib.dll
Note that the same happens for any call to the service (e.g., xrm.Create().
I searched for this on the web, and people say it is caused because of wrong time sync. Well, at least in the CRM Settings area, the time zone is correct, so I don't what to do.

Answer 1

The Xrm.Client is deprecated and as others have mentioned, the way to connect via a console app is CrmServiceClient, which is in the Microsoft.Xrm.Tooling.Connector library.
Using NuGet you can get the Microsoft.CrmSdk.XrmTooling.CoreAssembly package and you'll be off to the races.
Here are a couple other helpful links:
Build Windows client applications using the XRM tools
Sample: Quick start for XRM Tooling API
And here's a connection string example for Dyn365 online:
<add name="dev26" connectionString="Url=https://dev26.crm.dynamics.com; Username=user#dev26.onmicrosoft.com; Password=Pass; AuthType=Office365" />

Answer 2

From the connection string given in Microsoft's walkthrough, you must also
remove Domain=CONTOSO
add AuthType=Office365