If you post a code snippet, ALWAYS USE CODE TAGS:
How to use code tags: Using code tags properly
How to report your problem productively in the Unity3D forums:
How to understand compiler and other errors and even fix them yourself:
For this specific error, the answer is always the same… ALWAYS. It is the single most common error ever.
Don’t waste your life spinning around and round on this error. Instead, learn how to fix it fast… it’s EASY!!
Some notes on how to fix a NullReferenceException error in Unity3D
- also known as: Unassigned Reference Exception
- also known as: Missing Reference Exception
- also known as: Object reference not set to an instance of an object
The basic steps outlined above are:
- Identify what is null
- Identify why it is null
- Fix that.
Expect to see this error a LOT. It’s easily the most common thing to do when working. Learn how to fix it rapidly. It’s easy. See the above link for more tips.
This is the kind of mindset and thinking process you need to bring to this problem:
Step by step, break it down, find the problem.