blocks|key|2785328|text|将'tools:replace="android:appComponentFactory"'添加到AndroidManifest.xml中的<application>标记中|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2785329|你的AndroidManifest.xml|2785330|<?xml+version="1.0"+encoding="utf-8"?>
<manifest+xmlns:android="http://schemas.android.com/apk/res/android"
++++xmlns:tools="http://schemas.android.com/tools"
++++package="ru.chopcode.myapplication">

++++<application
++++++++tools:replace="android:appComponentFactory"
++++++++android:allowBackup="true"
++++++++android:icon="@mipmap/ic_launcher"
++++++++android:label="@string/app_name"
++++++++android:roundIcon="@mipmap/ic_launcher_round"
++++++++android:supportsRtl="true"
++++++++android:theme="@style/AppTheme">
+++</application>|code-block|syntax|javascript|2785331|​|2785332|entityMap^0|1|19|1D|J|1Y|D|0|2|J|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|11|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|P|$]]

Add <code>'tools:replace="android:appComponentFactory"'</code> in your <code>AndroidManifest.xml</code> inside <code>&lt;application&gt;</code> tag

Your <code>AndroidManifest.xml</code> 

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 package="ru.chopcode.myapplication"&gt;

 &lt;application
 tools:replace="android:appComponentFactory"
 android:allowBackup="true"
 android:icon="@mipmap/ic_launcher"
 android:label="@string/app_name"
 android:roundIcon="@mipmap/ic_launcher_round"
 android:supportsRtl="true"
 android:theme="@style/AppTheme"&gt;
 &lt;/application&gt;
</code></pre>

blocks|key|69093|text|我通过搜索@MehulSolanki+answer找到了一个解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|69094|我补充说|69095|tools:replace="android:appComponentFactory"
android:appComponentFactory="whateverString"|code-block|syntax|javascript|69096|在我的AndroidManifest.xml上|offset|length|style|CODE|69097|并更新com.android.tools.build:gradl：|69098|dependencies+{
++++classpath+'com.android.tools.build:gradle:3.2.1'
++}|69099|并将其添加到您的gradle.properties文件中|69100|android.useAndroidX=true
android.enableJetifier=true|69101|69102|错误:标记无法解析变量'${animal.sniffer.version}‘|blockquote|69103|69104|错误:标记无法解析变量'${junit.version}‘|69105|69106|如果出现上述错误|69107|69108|文件->无效缓存/重新启动|ordered-list-item|69109|Build+->清理项目|69110|69111|69112|错误:包android.support.annotation不存在错误:找不到可为空的符号类|69113|69114|69115|69116|添加implementation+'androidx.annotation:annotation:1.1.0'|69117|更改import+android.support.annotation.Nullable;+=>+androidx.annotation.Nullable;|69118|更改import+android.support.annotation.NonNull;+=>+androidx.annotation.NonNull;|69119|69120|+编译版本和目标版本应为28.|BOLD|69121|69122|entityMap^0|0|0|0|3|J|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|2|1H|0|2|17|1D|T|0|2|16|1C|S|0|0|1|4|6|4|C|3|0|0^^$0|@$1|2|3|4|5|6|7|1W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1X|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1Y|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|1Z|8|@$K|20|L|21|M|N]]|9|@]|A|$]]|$1|O|3|P|5|6|7|22|8|@]|9|@]|A|$]]|$1|Q|3|R|5|F|7|23|8|@]|9|@]|A|$G|H]]|$1|S|3|T|5|6|7|24|8|@]|9|@]|A|$]]|$1|U|3|V|5|F|7|25|8|@]|9|@]|A|$G|H]]|$1|W|3|-4|5|6|7|26|8|@]|9|@]|A|$]]|$1|X|3|Y|5|Z|7|27|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|28|8|@]|9|@]|A|$]]|$1|11|3|12|5|6|7|29|8|@]|9|@]|A|$]]|$1|13|3|-4|5|6|7|2A|8|@]|9|@]|A|$]]|$1|14|3|15|5|6|7|2B|8|@]|9|@]|A|$]]|$1|16|3|-4|5|6|7|2C|8|@]|9|@]|A|$]]|$1|17|3|18|5|19|7|2D|8|@]|9|@]|A|$]]|$1|1A|3|1B|5|19|7|2E|8|@]|9|@]|A|$]]|$1|1C|3|-4|5|6|7|2F|8|@]|9|@]|A|$]]|$1|1D|3|-4|5|6|7|2G|8|@]|9|@]|A|$]]|$1|1E|3|1F|5|Z|7|2H|8|@]|9|@]|A|$]]|$1|1G|3|-4|5|6|7|2I|8|@]|9|@]|A|$]]|$1|1H|3|-4|5|6|7|2J|8|@]|9|@]|A|$]]|$1|1I|3|15|5|6|7|2K|8|@]|9|@]|A|$]]|$1|1J|3|1K|5|6|7|2L|8|@$K|2M|L|2N|M|N]]|9|@]|A|$]]|$1|1L|3|1M|5|6|7|2O|8|@$K|2P|L|2Q|M|N]|$K|2R|L|2S|M|N]]|9|@]|A|$]]|$1|1N|3|1O|5|6|7|2T|8|@$K|2U|L|2V|M|N]|$K|2W|L|2X|M|N]]|9|@]|A|$]]|$1|1P|3|-4|5|6|7|2Y|8|@]|9|@]|A|$]]|$1|1Q|3|1R|5|Z|7|2Z|8|@$K|30|L|31|M|1S]|$K|32|L|33|M|1S]|$K|34|L|35|M|1S]]|9|@]|A|$]]|$1|1T|3|-4|5|6|7|36|8|@]|9|@]|A|$]]|$1|1U|3|-4|5|6|7|37|8|@]|9|@]|A|$]]]|1V|$]]

I found a solution through my search by referring to @MehulSolanki answer.

I add 

<pre><code>tools:replace="android:appComponentFactory"
android:appComponentFactory="whateverString"
</code></pre>

in my on <code>AndroidManifest.xml</code>

and update com.android.tools.build:gradl:

<pre><code>dependencies {
 classpath 'com.android.tools.build:gradle:3.2.1'
 }
</code></pre>

And add this in your gradle.properties file

<pre><code>android.useAndroidX=true
android.enableJetifier=true
</code></pre>

<blockquote>
 ERROR: [TAG] Failed to resolve variable '${animal.sniffer.version}'
 
 ERROR: [TAG] Failed to resolve variable '${junit.version}'
</blockquote>

In case of above error

<ol>
<li>File -> Invalidate Caches / restart</li>
<li>Build -> Clean project</li>
</ol>

<blockquote>
 error: package android.support.annotation does not exist
 error: cannot find symbol class Nullable
</blockquote>

In case of above error

Add <code>implementation 'androidx.annotation:annotation:1.1.0'</code>

change <code>import android.support.annotation.Nullable;</code> => <code>androidx.annotation.Nullable;</code>

change <code>import android.support.annotation.NonNull;</code> => <code>androidx.annotation.NonNull;</code>

<blockquote>
 Compile version and target version should be 28.
</blockquote>

blocks|key|2573181|text|将'react-native-device-info'升级到version+2.1.2为我修复了这个错误。请参阅github.com/facebook/react-native/issues/25294#issuecomment-503024749|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2573182|简而言之:该库使用"services-gcm:%2B"作为依赖项，而最新的gcm版本导致了这个问题。|2573183|entityMap|0|LINK|mutability|MUTABLE|url|http://github.com/facebook/react-native/issues/25294#issuecomment-503024749^0|1|Q|U|D|1K|1W|0|0|9|G|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|G|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

Upgrading <code>'react-native-device-info'</code> to <code>version 2.1.2</code> fixed the error for me. See <a href="http://github.com/facebook/react-native/issues/25294#issuecomment-503024749" rel="noreferrer">github.com/facebook/react-native/issues/25294#issuecomment-503024749</a>

In short: the library used <code>"services-gcm:+"</code> as a dependency, and the latest gcm version caused this problem.

blocks|key|71579|text|根本原因是迁移到Androidx，谷歌play服务更新到androidX感谢MR03web这个问题属于react-native-device-info？最佳选择是使用以下命令升级react-native-device-info|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|71580|yarn+upgrade+react-native-device-info@2.1.2
cd+android+&&+gradlew+clean
react-native+run-android|code-block|syntax|javascript|71581|或者，如果你不想升级，你应该像这样从react-native-device-info中排除com.google.android.gms。谢谢|71582|implementation(project(":react-native-device-info"),++{
++exclude+group:+"com.google.android.gms"
})
implementation+"com.google.android.gms:play-services-gcm:16.0.0"|71583|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/facebook/react-native/issues/25293#issuecomment-503008149^0|8|8|2H|O|12|7|0|0|0|I|O|19|M|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]]|E|$]]|$1|F|3|G|5|H|7|14|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|15|8|@$9|16|A|17|B|C]|$9|18|A|19|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|1A|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|1B|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]]]

The root cause is related migration to <code>Androidx</code>, google play service updated to androidX
Thanks to <a href="https://github.com/facebook/react-native/issues/25293#issuecomment-503008149" rel="noreferrer">MR03web</a> This problem belongs to react-native-device-info? best option is to upgrade <code>react-native-device-info</code> using 

<pre><code>yarn upgrade react-native-device-info@2.1.2
cd android &amp;&amp; gradlew clean
react-native run-android
</code></pre>

or if you don't want to upgrade you should exclude <code>com.google.android.gms</code> from <code>react-native-device-info</code> like this. Thanks

<pre><code>implementation(project(":react-native-device-info"), {
 exclude group: "com.google.android.gms"
})
implementation "com.google.android.gms:play-services-gcm:16.0.0"
</code></pre>

blocks|key|2785447|text|降级Google+Play服务版本。在android/app/build.gradle中更改|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2785448|compile+'com.google.android.gms:play-services-<service_name>:%2B'|2785449|至|2785450|compile+'com.google.android.gms:play-services-<service_name>:16.0.0'|2785451|因此，在我的例子中，<+sevice_name+>是location。但在其他人的情况下，它可能是任何其他谷歌Play服务(就像在list这里的http://www.androiddocs.com/google/play-services/setup.html)。|2785452|entityMap|0|LINK|mutability|MUTABLE|url|http://www.androiddocs.com/google/play-services/setup.html^0|J|O|0|0|1R|0|0|0|1W|0|Q|8|20|1M|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|11|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@]|E|$]]|$1|L|3|M|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@$9|18|A|19|1|1A]]|E|$]]|$1|N|3|-4|5|6|7|1B|8|@]|D|@]|E|$]]]|O|$P|$5|Q|R|S|E|$T|U]]]]

Downgrade Google Play service version. In <code>android/app/build.gradle</code> change

<code>compile 'com.google.android.gms:play-services-&lt;service_name&gt;:+'</code>

to

<code>compile 'com.google.android.gms:play-services-&lt;service_name&gt;:16.0.0'</code>

So in my case &lt; sevice_name > was <code>location</code>. But in someone's else case it may be any other Google Play Service (like in list here <a href="http://www.androiddocs.com/google/play-services/setup.html" rel="nofollow noreferrer">http://www.androiddocs.com/google/play-services/setup.html</a>).

blocks|key|69822|text|根据@Frank's+answer的说法，该库使用services-gcm:%2B作为依赖，而最新的gcm版本导致了这个问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|69823|我在我的项目中使用了:react-native-admob。因此，我只需在android/app/build.gradle中更改以下行|69824|发自：|69825|implementation+project(':react-native-admob')|code-block|syntax|javascript|69826|至：|69827|implementation(project(":react-native-admob"),++{
++++++++exclude+group:+"com.google.android.gms"
})
implementation+"com.google.android.gms:play-services-ads:16.0.0"|69828|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/56646765/4153833^0|P|E|2|8|0|0|A|J|11|O|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@$9|13|A|14|1|15]]|E|$]]|$1|F|3|G|5|6|7|16|8|@$9|17|A|18|B|C]|$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|1B|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|1C|8|@]|D|@]|E|$M|N]]|$1|O|3|P|5|6|7|1D|8|@]|D|@]|E|$]]|$1|Q|3|R|5|L|7|1E|8|@]|D|@]|E|$M|N]]|$1|S|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]]]

According to <a href="https://stackoverflow.com/a/56646765/4153833">@Frank's</a> answer the library used <code>services-gcm:+</code> as a dependency, and the latest gcm version caused this problem.

And I had used <code>:react-native-admob</code> in my project. So I just change the following lines in <code>android/app/build.gradle</code>

From:

<pre><code>implementation project(':react-native-admob')
</code></pre>

TO :

<pre><code>implementation(project(":react-native-admob"), {
 exclude group: "com.google.android.gms"
})
implementation "com.google.android.gms:play-services-ads:16.0.0"
</code></pre>

blocks|key|69830|text|在这个问题上花了一整天的时间。最后，我解决了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|69831|我从react-native-device-info和react-native-fast-image库中得到了这个错误。我只是从package.json文件中删除该库，然后安装|69832|"react-native-device-info"："%5E2.1.2"，“react-native-fast-”："%5E6.0.3"此最新版本|offset|length|style|BOLD|69833|我已经使用了下面的gradle版本|69834|classpath+'com.android.tools.build:gradle:3.3.1'|code-block|syntax|javascript|69835|我使用了下面的属性版本|69836|distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip|69837|我已经使用了以下版本|69838|buildToolsVersion+=+"28.0.3"
minSdkVersion+=+16
compileSdkVersion+=+28
targetSdkVersion+=+28
supportLibVersion+=+"28.0.0"|69839|entityMap^0|0|0|0|1J|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|12|8|@$F|13|G|14|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|15|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|16|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|17|8|@]|9|@]|A|$]]|$1|S|3|T|5|N|7|18|8|@]|9|@]|A|$O|P]]|$1|U|3|V|5|6|7|19|8|@]|9|@]|A|$]]|$1|W|3|X|5|N|7|1A|8|@]|9|@]|A|$O|P]]|$1|Y|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|Z|$]]

After spending a whole day on this issue. Finally, I have resolved this issue.

I got that error from react-native-device-info and react-native-fast-image library.
I just remove that library from package.json file and then install 

"react-native-device-info": "^2.1.2",
 "react-native-fast-image": "^6.0.3" this latest version

I have used below gradle version

<pre><code>classpath 'com.android.tools.build:gradle:3.3.1'
</code></pre>

I have used below properties version

<pre><code>distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip
</code></pre>

I have used below versions

<pre><code>buildToolsVersion = "28.0.3"
minSdkVersion = 16
compileSdkVersion = 28
targetSdkVersion = 28
supportLibVersion = "28.0.0"
</code></pre>

blocks|key|2785493|text|将以下内容添加到您的gradle.properties，然后清除/重建|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2785494|googlePlayServicesVersion=16.1.0
firebaseVersion=17.6.0|code-block|syntax|javascript|2785495|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Add the following to your gradle.properties then clean/rebuild

<pre><code>googlePlayServicesVersion=16.1.0
firebaseVersion=17.6.0
</code></pre>

blocks|key|2785519|text|This+answer应该可以帮助大多数人。如果它仍然不能，那么解决这个问题的方法(这不是很好)是你在android+studio中打开android项目。这应该会获取所有的gradle文件。在右侧，视图应该是android。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2785520|​|2785521|📷|atomic|2785522|2785523|从这里开始，只需在google+play服务或firebase服务或任何类似的库之前检查每个gradle构建文件中的%2B符号。这在this+answer中也有解释。|style|BOLD|2785524|之后，您可以按照上面答案中的说明进行更改。就像这样。|2785525|implementation(project(":react-native-admob"),++{
++++++++exclude+group:+"com.google.android.gms"
})
implementation+"com.google.android.gms:play-services-ads:16.0.0"|code-block|syntax|javascript|2785526|或者，如果库正在使用一个变量，您可以提供一个变量，或者作为最后的手段，自己更改它。|2785527|我把它放在这里的原因是，任何新手谁是厌倦了这个错误，随机地突然出现，可以有效地解决它和not...die。LOL。|2785528|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/56658575/5888166|1|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/25934e00baa373bb9235b57a9f4bee8a.jpeg|imageAlt|2|https://stackoverflow.com/a/56647134/5888166^0|0|4|0|0|0|0|1|1|0|0|1M|1|1S|4|2|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1E|8|@]|9|@$A|1F|B|1G|1|1H]]|C|$]]|$1|D|3|E|5|6|7|1I|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|1J|8|@]|9|@$A|1K|B|1L|1|1M]]|C|$]]|$1|I|3|E|5|6|7|1N|8|@]|9|@]|C|$]]|$1|J|3|K|5|6|7|1O|8|@$A|1P|B|1Q|L|M]]|9|@$A|1R|B|1S|1|1T]]|C|$]]|$1|N|3|O|5|6|7|1U|8|@]|9|@]|C|$]]|$1|P|3|Q|5|R|7|1V|8|@]|9|@]|C|$S|T]]|$1|U|3|V|5|6|7|1W|8|@]|9|@]|C|$]]|$1|W|3|X|5|6|7|1X|8|@]|9|@]|C|$]]|$1|Y|3|-4|5|6|7|1Y|8|@]|9|@]|C|$]]]|Z|$10|$5|11|12|13|C|$14|15]]|16|$5|17|12|18|C|$19|1A|1B|-4]]|1C|$5|11|12|13|C|$14|1D]]]]

<a href="https://stackoverflow.com/a/56658575/5888166">This</a> answer should help most people. If it still does not then the way to solve this (which is not that good) is that you open the android project in android studio. That should fetch all the gradle files. On the right side the view should be android. 

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

From here just check each gradle build file for a + sign ahead of google play services or firebase services or any such library. This has also been explained in <a href="https://stackoverflow.com/a/56647134/5888166">this</a> answer. 

After which you either change it like explained in the answer above. 
like so. 

<pre><code>implementation(project(":react-native-admob"), {
 exclude group: "com.google.android.gms"
})
implementation "com.google.android.gms:play-services-ads:16.0.0"
</code></pre>

Or you provide a variable if the library is using one or as a last resort change it there itself. 

The reason I put it here is so that any newbie who is sick of this error which randomly appeared out of nowhere all of a sudden can solve it effectively and not...die. lol.

blocks|key|71638|text|我也有同样的问题，只需升级react-native-device-info并运行以下命令|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|71639|npm+upgrade+react-native-device-info@latest
react-native+run-android|code-block|syntax|javascript|71640|entityMap^0|D|O|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

I had the same problem, just upgrade <code>react-native-device-info</code> and run the following command

<pre><code>npm upgrade react-native-device-info@latest
react-native run-android
</code></pre>

blocks|key|71642|text|将react-native-device-info升级到版本2.1.2修复我的问题|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|71643|entityMap^0|1|O|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

Upgrading <code>react-native-device-info</code> to version 2.1.2 Fix my problem

blocks|key|71650|text|如果你没有使用react-native-device-info，但是有同样的错误，它可能是你项目中的另一个库。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|71651|使用此命令查找有问题的库：|71652|cd+your-react-native-project/android
./gradlew+app:dependencies+>+deps.txt|code-block|syntax|javascript|71653|然后检查deps.txt文件中的关键字"androidx“。然后，您可以快速找到哪个本机模块正在使用它。|71654|在我的例子中是react-native-camera，上面的解决方案很好，但还不够，所以我必须在local.properties中添加以下内容：|71655|firebaseVersion=17.6.0
googlePlayServicesVersion=16.1.0
googlePlayServicesVisionVersion=16.2.0|71656|编辑:在这些修复之后，运行./gradlew+app:dependencies+>+deps.txt并搜索"androidx“没有返回任何结果-这就是我们要找的。|71657|在项目上运行clean之后，构建工作了。|BOLD|71658|entityMap^0|7|O|0|0|0|0|7|J|0|0|D|11|0|6|5|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|12|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|13|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|14|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|J|7|18|8|@]|D|@]|E|$K|L]]|$1|S|3|T|5|6|7|19|8|@$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|U|3|V|5|6|7|1C|8|@$9|1D|A|1E|B|W]]|D|@]|E|$]]|$1|X|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|Y|$]]

If you are not using <code>react-native-device-info</code>, but have the same error, its probably another library in your project.

Use this to find the library in question:

<pre><code>cd your-react-native-project/android
./gradlew app:dependencies &gt; deps.txt
</code></pre>

Then inspect the deps.txt file for keyword "androidx". Then you can quickly find which native module is using it.

In my case it was <code>react-native-camera</code>, for which solution above was good but not enough so I had to add this to local.properties:

<pre><code>firebaseVersion=17.6.0
googlePlayServicesVersion=16.1.0
googlePlayServicesVisionVersion=16.2.0
</code></pre>

EDIT:
After these fixes, running <code>./gradlew app:dependencies &gt; deps.txt</code> and searching for "androidx" returned no results - this is what we are looking for.

After running clean on the project, build worked.

blocks|key|71261|text|Google+play服务的突破性变化。参见Release+Notes。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|71262|解决这个问题的简单方法就是更改Google+play服务的版本。|71263|将所有+com.google.android.gms:play-services-*+依赖项更改为版本16|style|BOLD|CODE|71264|entityMap|0|LINK|mutability|MUTABLE|url|https://developers.google.com/android/guides/releases#june_17_2019^0|M|D|0|0|0|0|3|4|12|17|A|4|12|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|X|8|@$A|Y|B|Z|H|I]|$A|10|B|11|H|I]|$A|12|B|13|H|I]|$A|14|B|15|H|J]]|9|@]|C|$]]|$1|K|3|-4|5|6|7|16|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

Google play services breaking changes. See <a href="https://developers.google.com/android/guides/releases#june_17_2019" rel="nofollow noreferrer">Release Notes</a>.

The simple way to resolve this issue is just changing the version of Google play services.

Change all <code>com.google.android.gms:play-services-*</code> dependencies to version 16

I updated 'android.support:appcompat-v7' to <code>28.0.0</code>.

But it brought an error from the build.

<pre><code>Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91

 is also present at [androidx.core:core:1.0.0] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory).

 Suggestion: add 'tools:replace="android:appComponentFactory"' to &lt;application&gt; element at AndroidManifest.xml:8:5-23:19 to override.
</code></pre>

Then I get this error in my Logcat:

<blockquote>
 Manifest merger failed
</blockquote>

my app.gradle:

<pre><code> configurations.all {
 resolutionStrategy.force 'com.android.support:design:28.0.0'
 resolutionStrategy.force "com.android.support:support-v4:28.0.0"
 resolutionStrategy.force "com.android.support:support-media-compat:28.0.0"
 }
...
dependencies {
 implementation 'com.android.support:multidex:1.0.1'

 // Our dependencies
 implementation 'com.android.support:appcompat-v7:28.0.0'


 implementation 'com.android.support:appcompat-v7:28.0.0'
}
</code></pre>

how do I fix it?

I need your solutions.

Thank you in advance.

Android Material and appcompat Manifest merger failed in react-native or ExpoKit

我将'android.support:appcompat-v7‘更新为28.0.0。但它带来了构建过程中的错误。Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com....

问在react-native或ExpoKit中，Android Material和appcompat清单合并失败
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