Integration Services :: SSIS 2012 Script Always Throwing Same Error

I am writing the following code in my SSIS 2012 script task.I am deliberately trying to fali this code by adding some typos in the connection string.I want to catch the exception and display the exact exception message.but SSIS runtime is always throwing same error message as follows:

Exception has been thrown by the target of an invocation.

at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams)
at Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTATaskScriptingEngine.ExecuteScript()

Below is the code
  
public void Main()
  {
    //TODO: Add your code here
            try
            {
                SqlConnection conn = new SqlConnection("Data Source=apsed1674;Integrated Security=true;database=EDX");
             
[Code] ....