I wrote an c# console app which calls web service.
I needed to run this app for every night, so I decided to use this task scheduler as it seems a good one to do my job.
But I got an issue which says "Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object. ..."
I read many articles described about same issue, but nothing is helpful.
For example,
```
TaskDefinition td = ts.NewTask();
td.RegistrationInfo.Description = "Does something";
td.Principal.Id = "any string";
td.Principal.GroupId = "NETWORK SERVICE";
td.Principal.RunLevel = TaskRunLevel.LUA;
td.Principal.LogonType = TaskLogonType.S4U;
ts.RootFolder.RegisterTaskDefinition(@"NetsuiteInvoiceGetTask", td);
```
My OS is Windows7 64bit.
Can anyone help me? Thanks.
Comments: ** Comment from web user: dahall **
I needed to run this app for every night, so I decided to use this task scheduler as it seems a good one to do my job.
But I got an issue which says "Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object. ..."
I read many articles described about same issue, but nothing is helpful.
For example,
```
TaskDefinition td = ts.NewTask();
td.RegistrationInfo.Description = "Does something";
td.Principal.Id = "any string";
td.Principal.GroupId = "NETWORK SERVICE";
td.Principal.RunLevel = TaskRunLevel.LUA;
td.Principal.LogonType = TaskLogonType.S4U;
ts.RootFolder.RegisterTaskDefinition(@"NetsuiteInvoiceGetTask", td);
```
My OS is Windows7 64bit.
Can anyone help me? Thanks.
Comments: ** Comment from web user: dahall **
Were you able to resolve this issue? If not, please let me know the errors you're seeing and the line or lines of code associated with them. If so, please let me know how or if my suggestions worked for you. Thank you.