Non-static method requires a target

Question

I have a controller action that works fine on Firefox both locally and in production, and IE locally, but not IE in production. Here is my controller action: ``` public ActionResult MNPurchase() { CalculationViewModel calculationViewModel = (CalculationViewModel)TempData["calculationViewModel"]; decimal OP = landTitleUnitOfWork.Sales.Find() .Where(x => x.Min >= calculationViewModel.SalesPrice) .FirstOrDefault() .OP; decimal MP = landTitleUnitOfWork.Sales.Find() .Where(x => x.Min >= calculationViewModel.MortgageAmount) .FirstOrDefault() .MP; calculationViewModel.LoanAmount = (OP + 100) - MP; calculationViewModel.LendersTitleInsurance = (calculationViewModel.LoanAmount + 850); return View(calculationViewModel); } ``` Here is the stack trace I get in IE: Error. An error occurred while processing your request. System.Reflection.TargetException: Non-static method requires a target. at System.Reflection.RuntimeMethodInfo.CheckConsistency(Object target) at System.Reflection.RuntimeMethodInfo…

Accepted Answer

I think this confusing exception occurs when you use a variable in a lambda which is a null-reference at run-time. In your case, I would check if your variable calculationViewModel is a null-reference.

Something like:

```
public ActionResult MNPurchase()
{
    CalculationViewModel calculationViewModel = (CalculationViewModel)TempData["calculationViewModel"];

if (calculationViewModel != null)
    {
        decimal OP = landTitleUnitOfWork.Sales.Find()
            .Where(x => x.Min >= calculationViewModel.SalesPrice)
            .FirstOrDefault()
            .OP;

decimal MP = landTitleUnitOfWork.Sales.Find()
            .Where(x => x.Min >= calculationViewModel.MortgageAmount)
            .FirstOrDefault()
            .MP;

calculationViewModel.LoanAmount = (OP + 100) - MP;
        calculationViewModel.LendersTitleInsurance = (calculationViewModel.LoanAmount + 850);

return View(calculationViewModel);
    }
    else
    {
        // Do something else...
    }
}
```

Non-static method requires a target

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