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I recently got tossed some C# code to make some minor cosmetic changes to. When I open up some of the files in Visual Studio though, I get errors saying:
To prevent possible data loss...
The first of these errors is:
Object reference not set to an instance of an object.
I can follow the stack trace fine, but I'm not sure what I really should be looking for in this situation. Also, the end of my stack trace has a call that ends in "PageScroller..ctor()".
Based on a little Google research, I'm assuming that means call the constructor. Is that true?
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To fix "Object reference not set to an instance of an object," you should try running Microsoft Visual Studio as an administrator. You can also try resetting the user data associated with your account or updating Microsoft Visual Studio to the latest version.
"instance of object" Means that the object is blank (or in VB speak, "Nothing"). When you are dealing with object variables, you have to create an instance of that object before referencing it. "not set to an " means that you tried to access an object, but there was nothing inside of it for the computer to access.
This error is caused when an object is trying to be used by a script but does not refer to an instance of an object. Resolution. To fix this example we can acquire a reference to an instance of the script using GameObject.
You have a bug in design mode for some custom control, probably PageScroller, and apparently starting from the constructor. Perhaps there's some code in the constructor that returns null in design mode, and the null is not checked for.
125
I occasionally see problems like this. I started moving code from the constructor to the load event and that helped.
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