场景

最近在学习flutter,运行时碰到了这个错误。
I/flutter (25300): ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
I/flutter (25300): The following RangeError was thrown building Home(dirty, state:
I/flutter (25300): _HomeState#6e135):
I/flutter (25300): RangeError (index): Invalid value: Valid value range is empty: 0
…
════════════════════════════════════════════════════════════════════════════════════════════════════
I/flutter (25300): Another exception was thrown: RangeError (index): Invalid value: Valid value range is empty: 0

原因

在google上查了下，这是因为flutter使用gradle构建时出现的问题。
https://github.com/flutter/flutter/issues/17831

解决方法

在Android Studio中打开terminal下，运行 flutter clean

$ flutter clean

两次运行项目就正常了。