Naming templates is scary => Sitecore CLI: Unexpected HttpResponseMessage with code: InternalServerErrorSitecore CLI

Hello dear sitecorians, I hope you are good out there ??

This will be a short post, but very scary ??

Update! Sitecore Support tested the behavior on a clean instance of Sitecore with CLI 4.1.0 and the issue was not reproducible. So it should be ok ??

*Nevertheless we have “this issue” in our sitecore instances

Today we noticed something very strange in one of our environments, suddenly the good old “sitecore ser push” stopped working. We just got this error:

Unexpected HttpResponseMessage with code: InternalServerErrorSitecore CLI

In the CM logs we found this:

8144 11:40:47 ERROR Application error.
Exception: System.Web.HttpUnhandledException
Message: An unhandled exception occurred.
Source: Sitecore.Mvc
? ?at Sitecore.Mvc.Pipelines.MvcEvents.Exception.ShowAspNetErrorMessage.ShowErrorMessage(ExceptionContext exceptionContext, ExceptionArgs args)
? ?at Sitecore.Mvc.Pipelines.MvcEvents.Exception.ShowAspNetErrorMessage.Process(ExceptionArgs args)
? ?at (Object , Object )
? ?at Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args)
? ?at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain, Boolean failIfNotExists)
? ?at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain)
? ?at Sitecore.Mvc.Pipelines.PipelineService.RunPipeline[TArgs](String pipelineName, TArgs args)
? ?at Sitecore.Mvc.Filters.PipelineBasedRequestFilter.OnException(ExceptionContext exceptionContext)
? ?at System.Web.Mvc.ControllerActionInvoker.InvokeExceptionFilters(ControllerContext controllerContext, IList`1 filters, Exception exception)
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_1.<BeginInvokeAction>b__5(IAsyncResult asyncResult)
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult)
? ?at System.Web.Mvc.Controller.<>c.<BeginExecuteCore>b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState)
? ?at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
? ?at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
? ?at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
? ?at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
? ?at System.Web.Mvc.MvcHandler.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState)
? ?at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
? ?at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
? ?at Sitecore.Mvc.Routing.RouteHttpHandler.EndProcessRequest(IAsyncResult result)
? ?at System.Web.HttpApplication.CallHandlerExecutionStep.InvokeEndHandler(IAsyncResult ar)
? ?at System.Web.HttpApplication.CallHandlerExecutionStep.OnAsyncHandlerCompletion(IAsyncResult ar)


Nested Exception


Exception: Sitecore.Services.GraphQL.Hosting.GraphQLSchemaValidationException
Message: The GraphQL type testScary, defined in the ContentSchemaProvider schema provider, begins with a lower-case character. Types must be Pascal Cased.
Source: Sitecore.Services.GraphQL
? ?at Sitecore.Services.GraphQL.Schemas.SchemaBuilder.ValidateTypes(IList`1 types, String url)
? ?at Sitecore.Services.GraphQL.Schemas.SchemaBuilder.GenerateSchema(String url, IList`1 schemaProviders, IList`1 schemaExtenders)
? ?at Sitecore.Services.GraphQL.Hosting.GraphQLEndpointBase.CreateSchemaHostingInfo(String schemaId)
? ?at Sitecore.Services.GraphQL.Hosting.GraphQLEndpointBase.get_SchemaInfo()
? ?at Sitecore.Services.GraphQL.Hosting.GraphQLEndpointBase.CreateExecutionOptions(GraphQLRequest request, Boolean exposeExceptions)
? ?at Sitecore.Services.GraphQL.Hosting.Transports.HttpRequestHandler.<>c__DisplayClass3_0.<<ProcessRequestAsync>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
? ?at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
? ?at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
? ?at Sitecore.Services.GraphQL.Hosting.Transports.HttpRequestHandler.<ProcessRequestAsync>d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
? ?at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
? ?at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
? ?at Sitecore.Services.GraphQL.Hosting.Mvc.GraphQLController.<Query>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
? ?at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
? ?at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
? ?at System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult)
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass8_0.<BeginInvokeAsynchronousActionMethod>b__1(IAsyncResult asyncResult)
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__11_0()
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult)
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_6.<BeginInvokeAction>b__3()
? ?at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_1.<BeginInvokeAction>b__5(IAsyncResult asyncResult)        

Pay attention to this little guy ??

Exception: Sitecore.Services.GraphQL.Hosting.GraphQLSchemaValidationException
Message: The GraphQL type testScary, defined in the ContentSchemaProvider schema provider, begins with a lower-case character. Types must be Pascal Cased.
Source: Sitecore.Services.GraphQL        

I have never seen this before, so I reached out to the Sitecore Support. As always they where very helpful ??

And pointed out that the mentioned error might appear when building GraphQL schema if any of the type names starts a lower-case character.

So that got me thinking, the other day we where trying/testing out something. Splitting a template to base templates. And the naming was… __testScary

And guess what, after changing the template name to __TestScary then the error was gone.

So please please be careful when you guys are naming templates.

That’s all for now folks ??