测试时LateInitializationError

Question

我的变量已初始化，但我仍然收到 LateInitializationError。我只在测试时得到这个，正常工作正常。 日志：

Closure: () => void from Function 'updateLight':. // This is the value of variable being printed

══╡ EXCEPTION CAUGHT BY GESTURE ╞═══════════════════════════════════════════════════════════════════
The following LateError was thrown while handling a gesture:
LateInitializationError: Field 'updateMethod' has not been initialized.

我可以打印要使用的变量，这意味着它已被初始化。