react-native啓動時紅屏報錯：Unable to load script.Make sure you're either running a metro server or that ...

一、報錯信息內容       我是在Android Studio中運行啓動react-native項目時報的這個錯誤 1、報錯提示：Unable to load script.Make sure you're either running a metro server（ run 'react-native start' ） or that your bundle 'index.android.bu

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