Click on the Profile TAB at the top of the inspector window and click the circle record icon in the bottom left to start profiling.
单击检查器窗口顶部的Profile选项卡，点击底部左侧的圆形记录图标来启动分析。
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If there were any errors during profile generation, the dialog box will open and the errors will be detailed in the Problems view at the bottom of the screen.