Unity_ practical tips (Null pointer error)

In game development, NULL pointer errors are the most common and most likely errors.

Here is a brief description of the blogger's recently encountered null pointer error:

For example, there are two classes, and if we call the singleton pattern of Figure 1 in Figure 2, a null pointer error may occur.

The reason: The compiler may perform the awake in Figure 2 after the execution of Figure 1 awake, causing the singleton mode is not defined to be called, so a null pointer appears.

Unity_ practical tips (Null pointer error)