blocks|key|4304229|text|一个快速的临时解决方案是在您的顶级gradle文件中包含google+maven存储库。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4304230|allprojects+{
++repositories+{
++++++mavenLocal()
++++++maven+{+url+'https://maven.google.com'+}+//+<--+add+this!
++++++jcenter()|code-block|syntax|javascript|4304231|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|$]]

A quick temporary fix is to include the google maven repo in your top level gradle file.

<pre><code>allprojects {
 repositories {
 mavenLocal()
 maven { url 'https://maven.google.com' } // &lt;-- add this!
 jcenter()
</code></pre>

blocks|key|4304287|text|看起来问题是pom在jcenter上列出了，但是jar却不见了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4304288|https://jcenter.bintray.com/android/arch/lifecycle/runtime/1.0.0/|offset|length|4304289|如果元数据存在于存储库中，但缺少工件，则Gradle将失败|4304290|https://github.com/gradle/gradle/issues/1120|4304291|@Moritz的修复应该是有效的，首先转到maven.google.com|4304292|entityMap|0|LINK|mutability|MUTABLE|url|1^0|0|0|1T|0|0|0|0|18|1|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@$D|V|E|W|1|X]]|A|$]]|$1|F|3|G|5|6|7|Y|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|Z|8|@]|9|@$D|10|E|11|1|12]]|A|$]]|$1|J|3|K|5|6|7|13|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|C]]|S|$5|O|P|Q|A|$R|I]]]]

It would appear that the issue is that the pom is listed on jcenter but the jar is missing.

<a href="https://jcenter.bintray.com/android/arch/lifecycle/runtime/1.0.0/" rel="nofollow noreferrer">https://jcenter.bintray.com/android/arch/lifecycle/runtime/1.0.0/</a>

Gradle will fail if the metadata is present in a repo but the artifact is missing

<a href="https://github.com/gradle/gradle/issues/1120" rel="nofollow noreferrer">https://github.com/gradle/gradle/issues/1120</a>

@Moritz's fix should work by going to maven.google.com first

blocks|key|4304120|text|在android/build.gradle中，将代码更改为-|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4304121|+++allprojects+{
++++repositories+{
++++++++mavenLocal()
++++++++maven+{+url+'https://maven.google.com'+}
++++++++jcenter()
++++++++maven+{
++++++++++++//+All+of+React+Native+(JS,+Obj-C+sources,+Android+binaries)+is+installed+from+npm
++++++++++++url+"$rootDir/../node_modules/react-native/android"
++++++++}
++++}
}|code-block|syntax|javascript|4304122|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|$]]

In android/build.gradle, change the code as -

<pre><code> allprojects {
 repositories {
 mavenLocal()
 maven { url 'https://maven.google.com' }
 jcenter()
 maven {
 // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
 url "$rootDir/../node_modules/react-native/android"
 }
 }
}
</code></pre>

blocks|key|4304381|text|对我来说，AIT+MANSOUR和Moritz答案不起作用，因为我还有其他需要jcenter()和jitpack的依赖项，另外，对于react-native，你需要node_modules。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4304382|因此，我对react-native的解决方案是|4304383|allprojects+{
++++repositories+{
++++++++//+this+is+for+native+modules+I'm+developing
++++++++mavenLocal()
++++++++//+for+modules+depending+on+jitpack.io
++++++++maven+{+url+"https://jitpack.io"+}
++++++++//+add+this+one
++++++++maven+{
++++++++++++url+"https://maven.google.com"
++++++++}
++++++++maven+{
++++++++++++url+"$rootDir/../node_modules/react-native/android"
++++++++}
++++++++//+keep+this+at+the+end
++++++++jcenter()
++++}
}|code-block|syntax|javascript|4304384|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/50564539/2284676|1|https://stackoverflow.com/a/50564412/2284676^0|13|9|1D|7|1U|C|2A|C|5|B|0|H|6|1|0|5|C|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@$9|15|A|16|1|17]|$9|18|A|19|1|1A]]|E|$]]|$1|F|3|G|5|6|7|1B|8|@$9|1C|A|1D|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|1E|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]|U|$5|P|Q|R|E|$S|V]]]]

For me <a href="https://stackoverflow.com/a/50564539/2284676">AIT MANSOUR</a> and <a href="https://stackoverflow.com/a/50564412/2284676">Moritz</a> answers didn't work, because I had other dependencies that required <code>jcenter()</code> and <code>jitpack</code>, additionally, for <code>react-native</code> you need the <code>node_modules</code>.

So, my solution for <code>react-native</code> is

<pre><code>allprojects {
 repositories {
 // this is for native modules I'm developing
 mavenLocal()
 // for modules depending on jitpack.io
 maven { url "https://jitpack.io" }
 // add this one
 maven {
 url "https://maven.google.com"
 }
 maven {
 url "$rootDir/../node_modules/react-native/android"
 }
 // keep this at the end
 jcenter()
 }
}
</code></pre>

blocks|key|4304226|text|我解决了这个问题(至少对我来说是这样)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4304227|似乎jcenter在为项目提供库时遇到了一些问题(可能是暂时的)。正如人们在这里建议的那样，你可以通过从maven获得这些库来解决这个问题。|offset|length|style|CODE|4304228|打开你的build.gradle文件(对于in+devs，它在/platforms/android中)，在每一行代码的上方添加jcenter()这一行maven+{+url+'https://maven.google.com'+}。|4304229|对我来说是两个地方：buildscript和allprojects。在最后，build.gradle文件的顶部应该如下所示：|4304230|apply+plugin:+'com.android.application'

buildscript+{
++++repositories+{
++++++++maven+{+url+"https://maven.google.com"+}
++++++++jcenter()
++++}

++++dependencies+{
++++++++classpath+'com.android.tools.build:gradle:3.0.0'
++++}
}

allprojects+{
++++repositories+{
++++++++mavenLocal()
++++++++maven+{+url+'https://maven.google.com'+}
++++++++jcenter()
++++}
}|code-block|syntax|javascript|4304231|它是做什么的？它只是将库提供程序(在本例中为jcenter)更改为另一个，这样您的应用程序就可以成功地下载它们。其中的每一行都有一个带回退功能的库提供者。|4304232|我不知道为什么它一开始没有回退到maven，因为回退提供程序在我的build.gradle文件中。|4304233|entityMap^0|0|2|7|0|1R|9|23|14|0|A|B|M|B|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@$D|Y|E|Z|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|10|8|@$D|11|E|12|F|G]|$D|13|E|14|F|G]]|9|@]|A|$]]|$1|J|3|K|5|6|7|15|8|@$D|16|E|17|F|G]|$D|18|E|19|F|G]]|9|@]|A|$]]|$1|L|3|M|5|N|7|1A|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|1B|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1C|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]]|V|$]]

I solved the problem (at least for me).

It seems that the <code>jcenter</code> has some issues providing the libraries for the project(it may be temporary). As people suggested here, you can solve this by getting those libraries from maven.

Go to your build.gradle file (for ionic devs it is in /platforms/android) and add above every line of code where says <code>jcenter()</code> this line <code>maven { url 'https://maven.google.com' }</code>.

For me it was is two places: <code>buildscript</code> and <code>allprojects</code>. At the end the top of your build.gradle file should look like this:

<pre><code>apply plugin: 'com.android.application'

buildscript {
 repositories {
 maven { url "https://maven.google.com" }
 jcenter()
 }

 dependencies {
 classpath 'com.android.tools.build:gradle:3.0.0'
 }
}

allprojects {
 repositories {
 mavenLocal()
 maven { url 'https://maven.google.com' }
 jcenter()
 }
}
</code></pre>

What it does? It just changes the libraries provider(in this case jcenter) with another one so your app can download them successfully. Every line in there is a libraries provider with fallback.

I don't know why it didn't fallback to maven in the first place because the fallback provider was in my build.gradle file.

blocks|key|4304512|text|我删除了android平台，然后重新添加:删除：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4304513|cordova平台rm+android|4304514|要添加：|4304515|cordova平台添加android|4304516|现在一切正常注意:这个版本的android这次没有正确安装(在今天之前就安装了！)|4304517|cordova平台添加android@6.1.0|4304518|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|P|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|Q|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|S|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|M|$]]

I removed android platform and then added it again:
to remove:

cordova platform rm android

to add:

cordova platform add android

and all works fine now
Note: this version of android didn't install properly this time (did before today!) 

cordova platform add android@6.1.0

blocks|key|4304350|text|已发布解决此问题的新版本的cordova-android+(7.1.1)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4304351|所以移除当前的android平台|4304352|cordova+platform+rm+android|code-block|syntax|javascript|4304353|并添加新平台|4304354|cordova+platform+add+android@7.1.1|4304355|entityMap^0|D|F|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|W|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|X|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|Q|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|R|$]]

A new version of <code>cordova-android</code> (7.1.1) has been released that solves this problem.

So remove current android platform

<pre><code>cordova platform rm android
</code></pre>

And add the new platform

<pre><code>cordova platform add android@7.1.1
</code></pre>

After I am running <code>ionic cordova build android</code> I get this error:

<pre><code>FAILURE: Build failed with an exception.

* What went wrong:
Could not resolve all files for configuration ':debugCompileClasspath'.
&gt; Could not find runtime.jar (android.arch.lifecycle:runtime:1.0.0).
 Searched in the following locations:
 https://jcenter.bintray.com/android/arch/lifecycle/runtime/1.0.0/runtime-1.0.0.jar
</code></pre>

And it is right. When I go to this URL <code>https://jcenter.bintray.com/android/arch/lifecycle/runtime/1.0.0/runtime-1.0.0.jar</code> I get an <code>404 Not found error</code> as a JSON.

I don't see any android/ cordova specific versions in that URL so I can't say its from my cordova installation.

Cordova version: <code>7.1.0</code>

Ionic info:

<pre><code>cli packages: (C:\Users\%User%\AppData\Roaming\npm\node_modules)

 @ionic/cli-utils : 1.19.2
 ionic (Ionic CLI) : 3.20.0

global packages:

 cordova (Cordova CLI) : not installed // this is strange. I can run cordova in my terminal tho

local packages:

 @ionic/app-scripts : 3.1.8
 Cordova Platforms : android 6.4.0
 Ionic Framework : ionic-angular 3.9.2

System:

 Android SDK Tools : 26.1.1
 Node : v8.4.0
 npm : 5.3.0
 OS : Windows 10

Environment Variables:

 ANDROID_HOME : C:\Users\%User%\AppData\Local\Android\Sdk

Misc:

 backend : pro
</code></pre>

Also, I don't have any <code>cordova-android</code> folders in <code>C:\Users\%USER%\.cordova\lib\npm_cache</code> (I don't know if this helps. I saw people talking about this folder)

What's the problem here? Where is that URL coming from? How can I change it and with what can I change it? 

If I cannot solve this easily there is one last step to do: remove and install everything again.

Thank you!

Could not find runtime.jar (android.arch.lifecycle:runtime:1.0.0)

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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在我运行ionic cordova build android之后，我得到了这个错误：FAILURE: Build failed with an exception.* What went wrong:Could not resolve all files for configuration ':debugCompil...

问找不到runtime.jar (android.arch.lifecycle:runtime:1.0.0)
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