Question

I am having a project in which I have my API classes and in that project I have generated the Database.cs. In my MVC project I have refenrenced the API. Uppon running the application I am having the error message as follows, can anyone help please as I can`t understand why I am having this error message.

From http://www.garethelms.org/2011/05/help-getting-started-with-petapoco/#comment-69, I can see that all the GetSetMethod() are GetSetMethod(true) ever since the petaPOCo is installed.

Value cannot be null. Parameter name: meth Description: An unhandled
exception occurred during the execution of the current web request.
Please review the stack trace for more information about the error and
where it originated in the code.

Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: meth

Source Error:

Line 1990: } Line 1991: Line
1992: il.Emit(OpCodes.Callvirt,
pc.PropertyInfo.GetSetMethod(true)); // poco Line
1993: Handled = true; Line 1994: }

Source File: C:\Dev\MyProjectTest\Code\API\Models\PetaPoco.cs Line:
1992

Stack Trace:

[ArgumentNullException: Value cannot be null. Parameter name: meth]
System.Reflection.Emit.DynamicILGenerator.Emit(OpCode opcode,
MethodInfo meth) +9492330 PetaPoco.PocoData.GetFactory(String sql,
String connString, Boolean ForceDateTimesToUtc, Int32 firstColumn,
Int32 countColumns, IDataReader r) in
C:\Dev\MyProjectTest\Code\API\Models\PetaPoco.cs:1992
PetaPoco.d__71.MoveNext() in
C:\Dev\MyProjectTest\Code\API\Models\PetaPoco.cs:765
System.Collections.Generic.List1..ctor(IEnumerable1 collection) +327
System.Linq.Enumerable.ToList(IEnumerable1 source) +58
PetaPoco.Database.Fetch(String sql, Object[] args) in
C:\Dev\MyProjectTest\Code\API\Models\PetaPoco.cs:601
PecaTest.NewProject.API.Customer.LoadSortedByName() in
C:\Dev\MyProjectTest\Code\API\Customer.cs:68
PecaTest.NewProject.MvcUI.Models.CustomerListModel..ctor() in
C:\Dev\MyProjectTest\Code\MvcUI\Models\CustomerListModel.cs:14
PecaTest.NewProject.MvcUI.Controllers.CustomerController.GetIndexView()
in
C:\Dev\MyProjectTest\Code\MvcUI\Controllers\CustomerController.cs:82
PecaTest.NewProject.MvcUI.Controllers.CustomerController.Index() in
C:\Dev\MyProjectTest\Code\MvcUI\Controllers\CustomerController.cs:19
lambda_method(Closure , ControllerBase , Object[] ) +96
System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase
controller, Object[] parameters) +51
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext
controllerContext, IDictionary2 parameters) +409
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext
controllerContext, ActionDescriptor actionDescriptor, IDictionary2
parameters) +52
System.Web.Mvc.<>c_DisplayClassd.b_a()
+127 System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter
filter, ActionExecutingContext preContext, Func1 continuation) +436
System.Web.Mvc.<>c__DisplayClassf.<InvokeActionMethodWithFilters>b__c()
+61 System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter
filter, ActionExecutingContext preContext, Func1 continuation) +436
System.Web.Mvc.<>c_DisplayClassf.b_c()
+61 System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext
controllerContext, IList1 filters, ActionDescriptor actionDescriptor,
IDictionary2 parameters) +305
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext
controllerContext, String actionName) +830
System.Web.Mvc.Controller.ExecuteCore() +136
System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext)
+111 System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext
requestContext) +39
System.Web.Mvc.<>c_DisplayClass8.b_4() +65
System.Web.Mvc.Async.<>c_DisplayClass1.b_0() +44
System.Web.Mvc.Async.<>c__DisplayClass81.<BeginSynchronous>b__7(IAsyncResult
_) +42 System.Web.Mvc.Async.WrappedAsyncResult1.End() +140 System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult,
Object tag) +54
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult,
Object tag) +40
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
+52 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult
result) +38
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
+8969117 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +184

——————————————————————————– Version Information: Microsoft .NET Framework Version:4.0.30319;
ASP.NET Version:4.0.30319.272

---

Customer class

` private int id = 0;
    public  int ID
    {
        get { return id; }
        set { id = ID; }
    }

    protected string name;
    public Customer() { }

    public Customer(string name)
    {
        this.name = name;
    }

    public string Name
    {
        get { return name; }
        set { name = value; }
    }

    public override string ToString()
    {
        return name;
    }

`

Answer 1

The issue was indeed with the POCO as I missed to set and get the ID