blocks|key|1343925|text|根据自动收集用户属性上的帮助中心页面，|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1343926|对于iOS应用程序，应用程序必须是收集IDFA才能自动派生出年龄、性别和兴趣属性。|blockquote|1343927|其中的联系进一步澄清：|1343928|在iOS上，SDK收集广告标识符(如果可用的话)。要使IDFA可用，开发人员必须在以下库中链接：|1343929|libAdIdAccess.a|unordered-list-item|1343930|AdSupport.framework|1343931|因此，您可能需要检查是否包含必要的依赖项。|1343932|entityMap|0|LINK|mutability|MUTABLE|url|https://support.google.com/firebase/answer/6317486?hl=en|1|https://support.google.com/firebase/answer/6318039^0|2|8|0|0|H|6|1|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|D|3|E|5|F|7|15|8|@]|9|@$A|16|B|17|1|18]]|C|$]]|$1|G|3|H|5|6|7|19|8|@]|9|@]|C|$]]|$1|I|3|J|5|F|7|1A|8|@]|9|@]|C|$]]|$1|K|3|L|5|M|7|1B|8|@]|9|@]|C|$]]|$1|N|3|O|5|M|7|1C|8|@]|9|@]|C|$]]|$1|P|3|Q|5|6|7|1D|8|@]|9|@]|C|$]]|$1|R|3|-4|5|6|7|1E|8|@]|9|@]|C|$]]]|S|$T|$5|U|V|W|C|$X|Y]]|Z|$5|U|V|W|C|$X|10]]]]

According to this help center page on <a href="https://support.google.com/firebase/answer/6317486?hl=en" rel="nofollow noreferrer">automatically collected user properties</a>,
<blockquote>
For iOS apps, the app must <a href="https://support.google.com/firebase/answer/6318039" rel="nofollow noreferrer">collect IDFA</a> in order to automatically derive the Age, Gender, and Interests properties.
</blockquote>
The link in there further clarifies:
<blockquote>
On iOS, the SDK collects the Advertising Identifier if it is available. For IDFA to be available, a developer has to link in the following libraries:
<ul>
<li>libAdIdAccess.a</li>
<li>AdSupport.framework</li>
</ul>
</blockquote>
So you might want to check if you're including the necessary dependencies.

blocks|key|711503|text|基于答案这里，Firebase人口学报告因隐私原因而被阈值化。一旦你有了足够的数据-每个年龄/性别至少有10个用户-这个年龄段的数据就会显示出来。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|711504|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/37403466/2410594^0|4|2|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Based on the answer <a href="https://stackoverflow.com/a/37403466/2410594">here</a>, Firebase Analytics demographic reports is thresholded for privacy reasons. Once you have enough data -- at least 10 users per age/gender bracket -- data for that bracket will be shown.

blocks|key|1344033|text|有可能的原因是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1344034|谷歌信号没有激活。确保您已经为您的属性启用了Google信号，因为Google信号是Google与登录到他们的Google帐户并打开了Ads+Personalization的用户关联的会话数据。|ordered-list-item|offset|length|1344035|设备广告ID集合是禁用的。请确保启用了设备广告ID集，以便您能够在分析仪表板上看到人口统计和兴趣数据，因为它用于跟踪用户属性，如年龄、性别和兴趣。此外，Analytics还从安卓广告ID或iOS广告商标识符(IDFA)中获取人口统计数据和兴趣数据。|1344036|google-services.json或依赖项已经过时。|style|CODE|1344037|我有这样的问题。1和3来解决它。您还可以联系Firebase支持。|1344038|entityMap|0|LINK|mutability|MUTABLE|url|https://support.google.com/analytics/answer/9445345|1|https://firebase.google.com/docs/analytics/configure-data-collection?platform=android^0|0|0|4|0|0|0|8|1|0|0|K|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@$E|10|F|11|1|12]]|A|$]]|$1|G|3|H|5|D|7|13|8|@]|9|@$E|14|F|15|1|16]]|A|$]]|$1|I|3|J|5|D|7|17|8|@$E|18|F|19|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|1A|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]|W|$5|R|S|T|A|$U|X]]]]

There are possible reasons:
<ol>
<li><a href="https://support.google.com/analytics/answer/9445345" rel="nofollow noreferrer">Google Signals</a> isn't activated. Make sure that you have enabled Google Signals for your property, because Google signals are session data that Google associates with users who have logged in to their Google accounts and who have turned on Ads Personalization.</li>
<li><a href="https://firebase.google.com/docs/analytics/configure-data-collection?platform=android" rel="nofollow noreferrer">Collection of Device Advertising IDs</a> is disabled.
Please ensure that the Collection of Device Advertising IDs is enabled, so that you will be able to see demographic and interest data on the Analytics dashboard since this is used to track user properties such as Age, Gender and Interests. Also, Analytics derives demographics and interests data from the Android Advertising ID or the iOS Identifier for Advertisers (IDFA).</li>
<li><code>google-services.json</code> or dependencies are outdated</li>
</ol>
I have such problem. 1 and 3 solve it. You also can contact Firebase Support.

I am linking my Android and iOS app to Firebase Analytics, and it seems to work well except I cannot collect the "automatic" information about the user, such as gender and age.

<a href="https://i.stack.imgur.com/kutbS.png" rel="noreferrer"><img src="https://i.stack.imgur.com/kutbS.png" alt="enter image description here"></a>

I can see some thousands of users, and I can also track custom events (like in-app purchases)

<a href="https://i.stack.imgur.com/v6SLV.png" rel="noreferrer"><img src="https://i.stack.imgur.com/v6SLV.png" alt="enter image description here"></a>

But in the same view, gender and age are not present.

<a href="https://stackoverflow.com/questions/51316630/ios-firebase-analytics-it-seems-that-firebase-analytics-does-not-collect-user">This question</a> looks like the same, but the answer is not applicable: I used DebugView to test it and then deactivated it as per documentation. 

of course, View "All Users" audience displays the same data.

Firebase does not collect age and gender data

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在将我的安卓和iOS应用程序链接到Firebase，它似乎运行良好，除非我不能收集有关用户的“自动”信息，比如性别和年龄。​​我可以看到数千名用户，我还可以跟踪定制事件(比如应用程序中的购买)。​​但从同样的观点来看，性别和年龄并不存在。看起来是一样的，但答案是不适用的:我使用DebugView测试它，然后根据文档...

问Firebase不收集年龄和性别数据
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