Google Analytigcs 4 Unable to take effect

已增加Google Analytigcs 4,并按流程进行了设置,但页面未发现统计参数,Google Analytigcs 4后台也检测不到代码。
Google Analytics 4 has been added and set according to the process, but no statistical parameters were found on the page, and the code cannot be detected in the Google Analytics 4 backend.
Can someone help me?

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