blocks|key|3054419|text|对于平台文件中的更新更改，您必须运行ionic+cordova准备，然后运行ionic+serve+it+works。ionic+cordova准备将www的所有文件复制到platform目录中，该目录将反映在您的apk或ipa中|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3054420|entityMap^0|I|F|12|B|1N|F|23|3|2E|8|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]|$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|G|$]]

For update changes in platform file you have to run ionic cordova prepare and then run ionic serve it works..
ionic cordova prepare copy all files of www into platform directory that will reflect in your apk or ipa

blocks|key|2149405|text|当我使用ionic+cli构建应用程序(ionic3%2B+angular5)时，同样的问题也发生在我身上。我将'@ionic/app-scripts‘更新到版本'3.1.6'，然后解决了问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2149406|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

When I use ionic cli build app(ionic3 + angular5),same problem happened to me.I updated '@ionic/app-scripts' to version '3.1.6',then problem solved

blocks|key|5170724|text|试着这样做|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5170725|ionic+serve+--verbose+=>不工作，有错误；|offset|length|style|CODE|5170726|npm+run+ionic:build+--verbose+=>ran，用OK完成。|5170727|entityMap^0|0|0|L|0|0|T|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@$D|Q|E|R|F|G]]|9|@]|A|$]]|$1|J|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|K|$]]

Try like this

<code>ionic serve --verbose</code> =>didn’t work, there were errors;

<code>npm run ionic:build --verbose</code> =>ran, finnished with OK.

blocks|key|5170608|text|使用"npm+install“，然后使用"gulp”和"gulp“。还要确保您更新了所有依赖项。通过"ionic+info“检查您的依赖项的版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5170609|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Use "npm install" and then "gulp build" &amp; "gulp serve". Also make sure you update all the dependencies. Check versions of your dependencies by "ionic info".

blocks|key|5170678|text|试试npm+run+ionic:serve。在安装最新的cordova更新时也出现了类似的问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|5170679|entityMap^0|2|J|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|$]]

Try npm run ionic:serve. Similar issue occurred when installing the latest cordova update.

blocks|key|2143403|text|请尝试以下步骤..也许这会有帮助|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2143404|npm+install+-g+ionic@latest

npm+install+@ionic/app-scripts@latest+--save-dev

npm+install+ionic-angular@latest+--save

ionic+serve|code-block|syntax|javascript|2143405|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 below steps.. May be it will help

<pre><code>npm install -g ionic@latest

npm install @ionic/app-scripts@latest --save-dev

npm install ionic-angular@latest --save

ionic serve
</code></pre>

blocks|key|5170922|text|请在您的项目中使用这些命令。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5170923|sudo+sysctl+fs.inotify.max_user_watches=524288

sudo+sysctl+-p+--system|code-block|syntax|javascript|5170924|再一次运行离子服务器|5170925|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Please use these commands in your project.

<pre><code>sudo sysctl fs.inotify.max_user_watches=524288

sudo sysctl -p --system
</code></pre>

And again run ionic serve

blocks|key|2143471|text|删除node_modules文件夹，然后使用以下命令|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2143472|npm+install|code-block|syntax|javascript|2143473|紧接着是|2143474|ionic+serve--verbose|2143475|希望它能正常工作。|2143476|entityMap^0|2|C|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|Y|8|@]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|R|$]]

Delete the <code>node_modules</code> folder and then use the command

<pre><code>npm install
</code></pre>

followed by 

<pre><code>ionic serve--verbose
</code></pre>

Hope that it works fine.

blocks|key|236883|text|您不应该将"sudo“与任何ionic/npm命令一起使用。如果没有"sudo“就抛出错误，那么您可以通过更改npm包的所有者来修复它，使用以下命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|236884|sudo+chown+-R+$(whoami)+~/.npm|offset|length|style|CODE|236885|entityMap^0|0|0|U|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

You should not use "sudo" with any of the ionic/npm commands. If it throws error without "sudo", then you can fix it by changing the owner of the npm packages, using the command below:

<code>sudo chown -R $(whoami) ~/.npm</code>

blocks|key|2143367|text|我运行ionic+3应用程序的配置：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2143368|cli包：(/usr/local/lib/node_modules)|2143369|@ionic/cli-utils++:+1.19.1
ionic+(Ionic+CLI)+:+3.19.1|code-block|syntax|javascript|2143370|全局包：|2143371|cordova+(Cordova+CLI)+:+8.0.0+|2143372|本地包：|2143373|@ionic/app-scripts+:+3.1.7
Cordova+Platforms++:+android+6.3.0
Ionic+Framework++++:+ionic-angular+3.9.2|2143374|系统：|2143375|Android+SDK+Tools+:+26.1.1
Node++++++++++++++:+v8.2.1
npm+++++++++++++++:+5.5.0+
OS++++++++++++++++:+Linux+4.4|2143376|环境变量：|2143377|ANDROID_HOME+:+/root/Android/Sdk|2143378|其他：|2143379|backend+:+pro|2143380|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|15|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|16|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|17|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|18|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|19|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|1A|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|1B|8|@]|9|@]|A|$]]|$1|S|3|T|5|F|7|1C|8|@]|9|@]|A|$G|H]]|$1|U|3|V|5|6|7|1D|8|@]|9|@]|A|$]]|$1|W|3|X|5|F|7|1E|8|@]|9|@]|A|$G|H]]|$1|Y|3|Z|5|6|7|1F|8|@]|9|@]|A|$]]|$1|10|3|11|5|F|7|1G|8|@]|9|@]|A|$G|H]]|$1|12|3|-4|5|6|7|1H|8|@]|9|@]|A|$]]]|13|$]]

my configurations for running ionic 3 application:

cli packages: (/usr/local/lib/node_modules)

<pre><code>@ionic/cli-utils : 1.19.1
ionic (Ionic CLI) : 3.19.1
</code></pre>

global packages:

<pre><code>cordova (Cordova CLI) : 8.0.0 
</code></pre>

local packages:

<pre><code>@ionic/app-scripts : 3.1.7
Cordova Platforms : android 6.3.0
Ionic Framework : ionic-angular 3.9.2
</code></pre>

System:

<pre><code>Android SDK Tools : 26.1.1
Node : v8.2.1
npm : 5.5.0 
OS : Linux 4.4
</code></pre>

Environment Variables:

<pre><code>ANDROID_HOME : /root/Android/Sdk
</code></pre>

Misc:

<pre><code>backend : pro
</code></pre>

blocks|key|5170831|text|在提示符中使用这些命令。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5170832|npm+cache+clear+--force
rm+-rf+node_modules/
npm+install+-d|code-block|syntax|javascript|5170833|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|$]]

Use these commands in your prompt.

<pre><code>npm cache clear --force
rm -rf node_modules/
npm install -d
</code></pre>

blocks|key|3054567|text|安装%25+ws：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3054568|npm+install+ws@3.3.2+--save-dev+--save-exact|code-block|syntax|javascript|3054569|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|$]]

Install ws:

<pre><code>npm install ws@3.3.2 --save-dev --save-exact
</code></pre>

blocks|key|2149482|text|在ionic+3中，您必须键入：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2149483|2149484|cordova+run+android或cordova+run+ios，用于在device.|unordered-list-item|offset|length|style|CODE|2149485|cordova+build+android或cordova+build+ios中部署您的生成，仅用于生成。|2149486|2149487|entityMap^0|0|0|0|J|K|F|0|0|L|M|H|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|P|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|Q|8|@$F|R|G|S|H|I]|$F|T|G|U|H|I]]|9|@]|A|$]]|$1|J|3|K|5|E|7|V|8|@$F|W|G|X|H|I]|$F|Y|G|Z|H|I]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|10|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$]]

In ionic 3 you have to type:

<ul>
<li><code>cordova run android</code> or <code>cordova run ios</code>, to deploy your build in
device.</li>
<li><code>cordova build android</code> or <code>cordova build ios</code>, for build only.</li>
</ul>

blocks|key|2143421|text|你试过用这个cmd吗|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2143422|npm+run+ionic:服务|2143423|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Have you tried using this cmd

npm run ionic:serve

blocks|key|2143432|text|我觉得你的问题是|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2143433|NODE+version+(6.9.1)+..+|code-block|syntax|javascript|2143434|你能试着升级到9.1.0或更高版本吗？|2143435|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I think your prob is the 

<pre><code>NODE version (6.9.1) .. 
</code></pre>

can you just try to upgrade to 9.1.0 or more?

blocks|key|2149528|text|我的答案是有效的。我的机器也有一个不同的Node包，我一开始就忘记了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2149529|所以我使用以下命令删除了node_modules：|2149530|sudo+rm+-rf+/opt/local/bin/node+/opt/local/include/node+/opt/local/lib/node_modules
sudo+rm+-rf+/usr/local/bin/npm+/usr/local/share/man/man1/node.1+/usr/local/lib/dtrace/node.|code-block|syntax|javascript|2149531|为了简化所有cli+-+head+back+https://nodejs.org/并安装回LTS包的事情|offset|length|2149532|从brew卸载Node|2149533|使用installer以常规方式重新安装node.js|style|BOLD|2149534|entityMap|0|LINK|mutability|MUTABLE|url|https://nodejs.org/^0|0|0|0|M|J|0|0|0|0|B|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|12|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|13|8|@]|9|@$K|14|L|15|1|16]]|A|$]]|$1|M|3|N|5|6|7|17|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|18|8|@$K|19|L|1A|Q|R]]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]]]

My answers works. My machine is also having a different package of Node which I forgot about in the first place.

So I've removed node_modules using:

<pre><code>sudo rm -rf /opt/local/bin/node /opt/local/include/node /opt/local/lib/node_modules
sudo rm -rf /usr/local/bin/npm /usr/local/share/man/man1/node.1 /usr/local/lib/dtrace/node.
</code></pre>

To make things less complicated with all cli - head up back <a href="https://nodejs.org/" rel="nofollow noreferrer">https://nodejs.org/</a> and install back the LTS package

Uninstall Node from brew 
re-install node.js using conventional way using the installer

blocks|key|5171021|text|在package.json文件中包含以下脚本|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5171022|"browser":+"ionic-app-scripts+serve+--sourceMap+source-map+--iscordovaserve+--wwwDir+platforms/browser/www/+--buildDir+platforms/browser/www/build"
and+run|code-block|syntax|javascript|5171023|之后运行npm+run+browser|offset|length|style|CODE|5171024|entityMap^0|0|0|4|F|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Include below script in the package.json file 

<pre><code>"browser": "ionic-app-scripts serve --sourceMap source-map --iscordovaserve --wwwDir platforms/browser/www/ --buildDir platforms/browser/www/build"
and run
</code></pre>

After It Run <code>npm run browser</code>

blocks|key|3054784|text|我以前遇到过这个问题，试一下这个而不是离子服务：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3054785|npm+run+ionic:serve|code-block|syntax|javascript|3054786|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 faced this problem before ,try this instead of ionic serve :

<pre><code>npm run ionic:serve
</code></pre>

blocks|key|5171105|text|我曾经遇到过这样的问题，我尝试了一个新的应用程序，运行得很好，尝试了另一个旧的应用程序，也运行得很好。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5171106|尝试停止使用某些模块(在我的情况下是剪贴板和另一个)，解决了问题，在我的情况下，这是我导入或使用它的方式的错误。|5171107|ionic+5是我的ionic版本|5171108|希望这能帮助到一些人|5171109|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

I have faced such a problem, tried a fresh new app, worked perfectly, tried another old app, also worked perfectly.

Tried to stop using some modules (clipboard in my case and another one), solved the problem, in my case it was an error in the way I am importing or using it.

ionic 5 is my ionic version

Hope this will help someone

blocks|key|3054824|text|对我来说起作用的是修复ionic+repair项目，然后我运行ionic+serve，它运行得很好。希望这能解决你的问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3054825|entityMap^0|B|C|V|B|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|$]]

What Worked for me was repairing the project <code>ionic repair</code> , then I ran <code>ionic serve</code> and it worked fine. Hope this solves your problem.

My Ionic info:

<pre><code>cli packages: (/usr/lib/node_modules)

@ionic/cli-utils : 1.9.2
ionic (Ionic CLI) : 3.9.2

global packages:

Cordova CLI : 7.0.1 

local packages:

@ionic/app-scripts : 3.1.0
Cordova Platforms : browser 4.1.0
Ionic Framework : ionic-angular 3.9.2

System:

Node : v6.9.0
npm : 3.10.8 
OS : Linux 4.4
</code></pre>

Ionic serve is working fine, but does not detect any file changes! 

The problem appears only for Ionic v3 and v2 projects.

My Ionic v1 projects are working fine.

Ionic serve not working in Ionic 3

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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功能1上新10个字符

功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符。

功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符。

功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符

功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符

功能4上新

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