Question object reference not set to an instance of an object error

[arpit08]

hi,
I installed an application on client machine, but once in a while this error appears:
"object reference not set to an instance of an object error "
whereas the application works fine on my laptop on which i made it so i am unable to trace out the reason as well.
please help on how can i resolve it.
thanks

 

[jmcilhinney]

The error means that you are calling a method or accessing a property of an object that doesn't exist. We can't tell you more than that because we know nothing about your app. The error message should give you a pretty good idea of where the error occurred and, if you need to narrow it down further, you will need to add some tracing to your code, e.g. display message boxes or write to a file or a proper TraceListener at milestones.