NullReferenceException

  • Thread starter Thread starter Stelios
  • Start date Start date
S

Stelios

Hi.

I have a problem with an error that i get and mayby domebody can help.
I have a project that which gives a pop-up error when i open the
project with VS.
The error is :"The following Exception has occured.
NullReferenceException:Object reference not set to an instance of an
object".

The strange part of this error is that i receive it immediatly when i
open the project.
After Clicking the OK button, the project compiles and runs with no
problems.

How can i figure out what is this?

Thanks in advance
Stelios
 
Stelios said:
Hi.

I have a problem with an error that i get and mayby domebody can help.
I have a project that which gives a pop-up error when i open the
project with VS.
The error is :"The following Exception has occured.
NullReferenceException:Object reference not set to an instance of an
object".

The strange part of this error is that i receive it immediatly when i
open the project.
After Clicking the OK button, the project compiles and runs with no
problems.

How can i figure out what is this?

Thanks in advance
Stelios
Click to expand...

The popup should have a link that shows the stack trace. If not, you
could fire up a new instance of Visual Studio and connect to the first
instance using the debugger, perhaps that will let you find the
exception.
 
If this is your own code, change it to be like the following:

Try
{your code here}
Catch ex as Exception
msgbox(ex.Message & VbCrLf & ex.StackTrace)
End Try

This will give you information on where and what is causing the null
reference.
 
Hi.
Thanks for your comments!.
There is no link in the pop up window. and the problem was that i could
not find out what is the reason for this error, since it was appearing
immediatly when i was opening the solution file.
After having a detailed look at the project objects that i have draged
from the toolbox, I noticed that one dataset icon was disappeared!.
I created a new dataset object again, i set up again all the data
bindings and everything was OK.
I read that there is a problem with VS2003 about items that get
dissapeared and that microsoft has a hot fix for this.

Thanks
Stelios Halkiotis


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