Can't process attribute android:fillColor="@color/gray"，添加vector屬性報錯解決方法

  Android studio添加vector屬性文件報錯 vector屬性文件 <vector xmlns:android="http://schemas.android.com/apk/res/android" android:width="24dp" android:height="24dp" android:viewportHeight="49.94" a

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