ModelsBuilder.Original: Failing to build models with VS Ext 8.0.4

Hi,

I have just tried to re-build my models ( first time in at least a week on this project ) and for some reason it is failing to create the models.

I currently have:

Umbraco Version: 7.14 The Visual Studio extension Version: 8.0.4 Umbraco.ModelsBuilder Version: 3.0.10 Umbraco.ModelsBuilder.API Version: 3.0.10

I wasn’t sure if I should update the Umbraco.ModelsBuilder to the latest 8.0.x versions, I also tried this, but the error remained so I reverted them back.

I have updated my solution to .NET 4.7.2

The solution is set to use the latest version of C#

But after making both of the above changes, the error message remains the same, which is the following:

UmbracoModelsBuilder: Starting v8.0.4 3/20/2019 5:59:14 PM.
UmbracoModelsBuilder: UmbracoModelsBuilder failed to generate code: Exception: Response status code does not indicate success (InternalServerError)
{"Message":"An error has occurred.","ExceptionMessage":"Feature 'expression-bodied property' is not available in C# 5.  Please use language version 6 or greater.","ExceptionType":"Umbraco.ModelsBuilder.Building.CompilerException","StackTrace":"   at Umbraco.ModelsBuilder.Building.Compiler.ThrowExceptionFromDiagnostic(String path, String code, Diagnostic diagnostic) in D:\\d\\Zbu ModelsBuilder-7\\Umbraco.ModelsBuilder\\Building\\Compiler.cs:line 161\r\n   at Umbraco.ModelsBuilder.Building.Compiler.<>c__DisplayClass12_0.<GetCompilation>b__0(KeyValuePair`2 x) in D:\\d\\Zbu ModelsBuilder-7\\Umbraco.ModelsBuilder\\Building\\Compiler.cs:line 50\r\n   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()\r\n   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)\r\n   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)\r\n   at Umbraco.ModelsBuilder.Building.Compiler.GetCompilation(String assemblyName, IDictionary`2 files, SyntaxTree[]& trees) in D:\\d\\Zbu ModelsBuilder-7\\Umbraco.ModelsBuilder\\Building\\Compiler.cs:line 46\r\n   at Umbraco.ModelsBuilder.Building.CodeParser.Parse(IDictionary`2 files, IEnumerable`1 references) in D:\\d\\Zbu ModelsBuilder-7\\Umbraco.ModelsBuilder\\Building\\CodeParser.cs:line 38\r\n   at Umbraco.ModelsBuilder.Api.ApiHelper.GetModels(String modelsNamespace, IDictionary`2 files) in D:\\d\\Zbu ModelsBuilder-7\\Umbraco.ModelsBuilder\\Api\\ApiHelper.cs:line 16\r\n   at Umbraco.ModelsBuilder.Api.ModelsBuilderApiController.GetModels(GetModelsData data) in D:\\d\\Zbu ModelsBuilder-7\\Umbraco.ModelsBuilder.Api\\ModelsBuilderApiController.cs:line 65\r\n   at lambda_method(Closure , Object , Object[] )\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters)\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.Execute(Object instance, Object[] arguments)\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Filters.AuthorizationFilterAttribute.<ExecuteAuthorizationFilterAsyncCore>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()"}
UmbracoModelsBuilder:    at Umbraco.ModelsBuilder.Api.ApiClient.EnsureSuccess(HttpResponseMessage result)
   at Umbraco.ModelsBuilder.Api.ApiClient.GetModels(Dictionary`2 ourFiles, String modelsNamespace)
   at Umbraco.ModelsBuilder.CustomTool.CustomTool.UmbracoModelsBuilder.GenerateRaw(String wszInputFilePath, String wszDefaultNamespace, IntPtr[] rgbOutputFileContents, UInt32& pcbOutput, String& errMsg)

Currently I am unable to update my client’s site which is somewhat critical, any help you can give me would be much appreciated. 😃