blocks|key|1042002|text|我得到了答案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1042003|就试着：|1042004|npm+start+--+--reset-cache|code-block|syntax|javascript|1042005|指挥部，它会成功的。|1042006|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I got an answer.

Just try:

<pre><code>npm start -- --reset-cache
</code></pre>

command, it will work.

blocks|key|1041995|text|此问题仅在安装了react本机0.57.2时才会发生。
在从./node_modules/react-native/scripts/packager.sh启动时，Metro似乎有一个解决路径的问题。
直接从项目目录启动Metro+Bundler对我来说是可行的。有人能让我知道它是否也适用于他们吗?干净的缓存rm+-rf+$TMPDIR/+rm+*；rm+-rf+$TMPDIR/rm-*；rm+-rf+$TMPDIR/-rf*；看门手表-del-all#+start+Metro直接反应-本地启动#现在在另一个选项卡中运行react-native+run-android或react-native+run-ios。|type|blockquote|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1041996|来源|unstyled|1041997|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/facebook/react-native/issues/21490#issuecomment-427240356^0|U|1B|7A|O|7Z|K|0|0|2|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|H|7|X|8|@]|D|@$9|Y|A|Z|1|10]]|E|$]]|$1|I|3|-4|5|H|7|11|8|@]|D|@]|E|$]]]|J|$K|$5|L|M|N|E|$O|P]]]]

<blockquote>
 This issue only happens when react-native 0.57.2 is installed.
 
 It seems like the Metro Bundler has an issue resolving the paths when
 started from <code>./node_modules/react-native/scripts/packager.sh</code>.
 
 Starting the Metro Bundler directly from the project directory works
 for me. Can someone let me know if it works for them too?

<pre><code># Clean cache
rm -rf $TMPDIR/react-*; rm -rf $TMPDIR/haste-*; rm -rf $TMPDIR/metro-*; watchman watch-del-all

# Start Metro Bundler directly
react-native start

# Now run `react-native run-android` or `react-native run-ios` in another tab
</code></pre>
</blockquote>

<a href="https://github.com/facebook/react-native/issues/21490#issuecomment-427240356" rel="noreferrer">Source</a>

blocks|key|1042033|text|使用此推荐的.this方法尝试清除缓存。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1042034|react-native+start+--reset-cache|code-block|syntax|javascript|1042035|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|$]]

try clear cache using this commend .this method was worked for me 

<pre><code>react-native start --reset-cache
</code></pre>

blocks|key|1042062|text|你需要：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1042063|降级以作出反应-原生"0.57.1“|ordered-list-item|1042064|跑：
npm+install+@babel/runtime|offset|length|style|CODE|1042065|entityMap^0|0|0|3|Q|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|O|8|@$G|P|H|Q|I|J]]|9|@]|A|$]]|$1|K|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|L|$]]

you need to :

<ol>
<li>downgrade to react-native "0.57.1"</li>
<li>run :

<code>npm install @babel/runtime</code></li>
</ol>

blocks|key|334048|text|以下工作已得到确认，将致力于：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|334049|"react":+"16.5.0",
"react-native":+"0.57.2"|code-block|syntax|javascript|334050|工作：|offset|length|style|BOLD|334051|#+https://github.com/facebook/react-native/issues/21490

#+1)+Clean+cache
rm+-rf+$TMPDIR/react-*;+rm+-rf+$TMPDIR/haste-*;+rm+-rf+$TMPDIR/metro-*;+watchman+watch-del-all

#+2)+Open+a+*NEW*+terminal+tab+and+
#++++Start+Metro+Bundler+directly+from+the+project+folder+using:
react-native+start++--reset-cache

#+3)+Return+to+second+project+folder+tab+and+run
#+react-native+run-android`
#+or
#+react-native+run-ios`|334052|entityMap^0|0|0|0|3|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

The work-around below has been confirmed to work on:

<pre><code>"react": "16.5.0",
"react-native": "0.57.2"
</code></pre>

Work-around:

<pre><code># https://github.com/facebook/react-native/issues/21490

# 1) Clean cache
rm -rf $TMPDIR/react-*; rm -rf $TMPDIR/haste-*; rm -rf $TMPDIR/metro-*; watchman watch-del-all

# 2) Open a *NEW* terminal tab and 
# Start Metro Bundler directly from the project folder using:
react-native start --reset-cache

# 3) Return to second project folder tab and run
# react-native run-android`
# or
# react-native run-ios`
</code></pre>

blocks|key|334022|text|捆绑失败:错误:无法解析模块/../react-transform-hmr/lib/index.js|type|unstyled|depth|inlineStyleRanges|entityRanges|data|334023|这个解决方案对我有用。仅在第130号线附近更新node_modules\metro\src\reactNativeTransformer.js|334024|https://github.com/facebook/metro/commit/e595178fc859263cc2d88de08650d99c52bcc0d9|offset|length|334025|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|29|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@$F|R|G|S|1|T]]|A|$]]|$1|H|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|E]]]]

bundling failed: Error: Unable to resolve module /../react-transform-hmr/lib/index.js

This solution work for me. Only update node_modules\metro\src\reactNativeTransformer.js near line no.130

<a href="https://github.com/facebook/metro/commit/e595178fc859263cc2d88de08650d99c52bcc0d9" rel="nofollow noreferrer">https://github.com/facebook/metro/commit/e595178fc859263cc2d88de08650d99c52bcc0d9</a>

blocks|key|1042177|text|这是我发现的一个有趣的解决办法。(运行在Windows+10上)打开2个Powershell窗口。在第一个类型react-native+start+--reset-cache中，在第二个类型中，转到您的文件夹路径，然后键入react-native+run-android，就像一个魅力！|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1042178|entityMap^0|1J|W|33|O|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

Here is a fun workaround i discovered .
(Running on Windows 10 )
Open 2 Powershell windows .
In the first type <code> react-native start --reset-cache </code> 
In the second go to your folder path and type <code> react-native run-android </code>
works like a charm!

blocks|key|1886715|text|这个问题已经在React+Native@0.57.3中解决了，因此您可能需要考虑升级到该版本或更高版本。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1886716|只需确保您还将React和React+test+renderer更新为至少版本"16.6.0-alpha.8af6728"。我还迁移到使用React@16.6.0+来解决任何问题.|BOLD|1886717|反应原生0.57.3变化的|1886718|注意：当您升级到这个版本时，需要至少将react和react+test-renderer升级为版本"16.6.0-alpha.8af6728"+(下一个版本将更新为16.6.0的“第一类支持”，很快就会出现--但无论如何使用16.6.0应该是相当安全的)。另外，请查看下面的已知问题部分，特别是如果您正在使用Xcode+10。|blockquote|1886719|entityMap^0|7|J|0|7|5|D|J|13|M|1X|C|1X|C|2A|8|0|0|D|0|0|4J|1D|M|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]|$9|X|A|Y|B|C]|$9|Z|A|10|B|C]|$9|11|A|12|B|H]|$9|13|A|14|B|H]]|D|@]|E|$]]|$1|I|3|J|5|6|7|15|8|@$9|16|A|17|B|H]]|D|@]|E|$]]|$1|K|3|L|5|M|7|18|8|@$9|19|A|1A|B|H]|$9|1B|A|1C|B|C]]|D|@]|E|$]]|$1|N|3|-4|5|6|7|1D|8|@]|D|@]|E|$]]]|O|$]]

This issues has been resolved in <code>React Native@0.57.3</code>, so you might want to cosider upgrading to that or later version at this point. 

Just make sure you also update <code>React</code> and <code>React test renderer</code> to atleast version <code>"16.6.0-alpha.8af6728"</code>. I have also migrated to use <code>React@16.6.0</code> whitout any issues.

React Native 0.57.3 changelog

<blockquote>
 NOTE WELL: when you upgrade to this version you NEED to upgrade react and react-test-renderer to version <code>"16.6.0-alpha.8af6728"</code> at least (next version will update to "first class support" for 16.6.0, and it will come soon - but you should be fairly safe using 16.6.0 anyway). Also, please check the Known issues section below, especially if you are using Xcode 10.
</blockquote>

blocks|key|334100|text|首先，这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|334101|npm+install+@babel/runtime|code-block|syntax|javascript|334102|然后运行以下命令：|334103|react-native+start+--reset-cache|334104|然后运行这个：|334105|react-native+run-android|334106|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

First of all, do this : 

<pre><code>npm install @babel/runtime
</code></pre>

Then run this:

<pre><code>react-native start --reset-cache
</code></pre>

and then run this one :

<pre><code>react-native run-android
</code></pre>

blocks|key|1886578|text|我被困在这里面大概有3/4天。我尝试了每一种方法，但都没有解决我的问题。最后，我设法解决了这个问题(对我来说)，以下是我的设置：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1886579|npm+-version+=+6.4.1|unordered-list-item|1886580|节点-v+=+10.11.0|1886581|python+-版本=+2.7.14|1886582|然后，在命令“react本机init+MyProject”期间，它将安装的版本将是"0.57.2“，这导致了问题，所以我遇到的简单方法是在init使用期间。|1886583|>react本机init+-版本=“0.55.4”MyProject|offset|length|style|BOLD|1886584|而不是>react本机init+MyProject|1886585|它为我修复了一切，并在我的设备上安装的apk上加载了入门页面(我使用的是设备而不是模拟器)|1886586|希望这有帮助，我真的是新手编程，很抱歉，我不能解释这个东西更多的技术术语。|1886587|谨致问候|1886588|entityMap^0|0|0|0|0|0|0|Y|0|3|M|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|11|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|12|8|@]|9|@]|A|$]]|$1|G|3|H|5|D|7|13|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|14|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|15|8|@$M|16|N|17|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|18|8|@$M|19|N|1A|O|P]]|9|@]|A|$]]|$1|S|3|T|5|6|7|1B|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|1C|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1D|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]]|Z|$]]

I was so stuck in this for like 3/4 days.
I tried every approach but none fixed my problem.
Finally I managed to solve this(for me), the following were my settings:

<ul>
<li>npm -version = 6.4.1</li>
<li>node -v = 10.11.0</li>
<li>python --version = 2.7.14</li>
</ul>

Then during command "react-native init MyProject" the version it would install would be "0.57.2" which caused me the problem so the easy way that I came across was during init use 

>react-native init --version="0.55.4" MyProject

rather than >react-native init MyProject

It fixed everything for me and loaded the startpage on the installed apk on my device ( I am using a device rather than an emulator)

Hope this helps, I am really new to programming, sorry about my inability to explain this stuff more technical terms.

Best wishes

blocks|key|1042250|text|我也有同样的问题，对我来说，秘密是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1042251|若要更新本机-cli，请使用|1042252|npm+install+react-native-cli+-g|code-block|syntax|javascript|1042253|然后，一切都如期而至。|1042254|我的版本是0.60.5|1042255|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I had the same issue and for me, the secret sause was:

To Update the react-native-cli with

<pre><code>npm install react-native-cli -g
</code></pre>

Then, everything was running and working as expected.

My version is 0.60.5

blocks|key|1886803|text|我用这些步骤解决了问题，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1886804|-+Close+all+the+npm+Terminal
-+Open+a+new+Command+prompt+and+run+react-native+start+--reset-cache
-+Open+a+new+Command+prompt+and+run+react-native+run-android|code-block|syntax|javascript|1886805|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|$]]

I resolved by these steps,

<pre><code>- Close all the npm Terminal
- Open a new Command prompt and run react-native start --reset-cache
- Open a new Command prompt and run react-native run-android
</code></pre>

blocks|key|1886667|text|1)在您的package.json+2中更改react本地版本react-本机"0.57.2“到"0.57.1”)再次运行纱线\npm安装。3)杀死所有节点进程killall+node+4)再次测试应用程序。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1886668|造成此问题的最常见原因可能是使用非模拟器的物理设备。希望这个问题将在未来的反应版本中得到解决。|1886669|entityMap^0|28|C|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

1) change react native version react-native "0.57.2" to "0.57.1" in your package.json
2) run yarn|npm install again.
3) kill all node processes <code>killall node</code>
4) test your app again.

most common reason for the problem can be using a physical device other than an emulator.
hope this issue will be fixed in future react versions.

error: bundling failed: Error: Unable to resolve module <code>./../../react-transform-hmr/lib/index.js</code> from <code>/ReactNative/UsermanagementNav/src/App.js</code>: The module <code>./../../react-transform-hmr/lib/index.js</code> could not be found from <code>/ReactNative/UsermanagementNav/src/App.js</code>.

I have tried to install react-native-transform-hmr using 

<blockquote>
 npm i react-native-transform-hmr
</blockquote>

but it does not solve my issue. i am using react-native 0.57.2 and react 16.5.0

Unable to resolve module `./../../react-transform-hmr/lib/index.js`

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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错误:捆绑失败:错误:无法从/ReactNative/UsermanagementNav/src/App.js解析模块./../../react-transform-hmr/lib/index.js：无法从/ReactNative/UsermanagementNav/src/App.js找到模块./../../react-transform-hmr/lib/index.js。我尝试过使用以下方法安

问无法解析模块`./../hmr/lib/index.js‘
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回答 13

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问无法解析模块`./../hmr/lib/index.js‘
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