android xml 佈局錯誤（黑掉了）Missing styles. Is the correct theme chosen for this layout?

發現在調整頁面的時候 ，老是報以下錯誤，導致無法靜態顯示ui效果。 Missing styles. Is the correct theme chosen for this layout? Use the Theme combo box above the layout to choose a different layout, or fix the theme style references.

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