NoSuchMethodError: The getter 'inputs' was called on null.
I get this message : You have hit a bug in build_runner Please file an issue with reproduction step ...
原文：flutter報錯：NoSuchMethodError: The method '>' was called on null.
寫了個list,發現出不來，報錯 flutter: Another exception was thrown: RenderBox was not laid out: RenderScrollSemantics b a relayoutBoundary up NEEDS PAINTflutter: Another exception was thrown: package:flutter src ...
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