blocks|key|4386784|text|检查node_modules目录是否存在。在新的克隆之后，很可能没有node_modules+(因为它们是.gitignore'd)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4386785|解决方案|4386786|运行npm+install+(或yarn)以确保下载了所有deps。|4386787|替代解决方案|4386788|如果node_modules存在，请使用rm+-rf+node_modules将其删除，然后运行npm+install+(或yarn)。|4386789|entityMap^0|2|C|Y|C|1H|A|0|0|2|B|G|4|0|0|2|C|K|J|1C|B|1Q|4|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|X|8|@$9|Y|A|Z|B|C]|$9|10|A|11|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|12|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|13|8|@$9|14|A|15|B|C]|$9|16|A|17|B|C]|$9|18|A|19|B|C]|$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|N|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|O|$]]

Check if <code>node_modules</code> directory exists. After a fresh clone, there will very likely be no <code>node_modules</code> (since these are <code>.gitignore</code>'d).
<h2>Solution</h2>
run <code>npm install</code> (or <code>yarn</code>) to ensure all deps are downloaded.
<h2>Alternative Solution</h2>
If <code>node_modules</code> exists, remove it with <code>rm -rf node_modules</code> and then run <code>npm install</code> (or <code>yarn</code>).

blocks|key|4386479|text|我尝试了上面的所有方法，但都不起作用，所以我使用了npm+i+react-scripts，它起作用了|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4386480|entityMap^0|P|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|$]]

Tried all of the above and nothing worked so I used <code>npm i react-scripts</code> and it worked

blocks|key|4386732|text|我也有过类似的问题。在我的例子中，安装Yarn并首先执行命令是有帮助的|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4386733|yarn|offset|length|style|CODE|4386734|然后执行以下命令|4386735|yarn+start|4386736|如果您克隆的项目包含yarn.lock文件，那么这也适用于您。希望它能帮上忙！|4386737|entityMap^0|0|0|4|0|0|0|A|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@$D|R|E|S|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|T|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@$D|V|E|W|F|G]]|9|@]|A|$]]|$1|L|3|M|5|6|7|X|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|O|$]]

I had similar issue. In my case it helped to have Yarn installed and first execute the command 

<code>yarn</code> 

and then execute the command

<code>yarn start</code> 

That could work for you too if the project that you cloned have the yarn.lock file. Hope it helps!

blocks|key|4386672|text|https://github.com/facebookincubator/create-react-app|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4386673|npm+install+-g+create-react-app

create-react-app+my-app
cd+my-app/
npm+start|code-block|syntax|javascript|4386674|您可以全局安装create-react-app包。之后，运行它并创建一个名为my-app的项目。输入您的项目文件夹，然后运行npm+start。如果这不起作用，请尝试运行npm+install，然后运行npm+start。如果这不起作用，请尝试更新您的节点版本和/或npm。|style|CODE|4386675|entityMap|0|LINK|mutability|MUTABLE|url^0|0|1H|0|0|0|12|6|1Q|9|2D|B|2T|9|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|D|3|E|5|F|7|X|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Y|8|@$A|Z|B|10|K|L]|$A|11|B|12|K|L]|$A|13|B|14|K|L]|$A|15|B|16|K|L]]|9|@]|C|$]]|$1|M|3|-4|5|6|7|17|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|4]]]]

<a href="https://github.com/facebookincubator/create-react-app" rel="noreferrer">https://github.com/facebookincubator/create-react-app</a>

<pre><code>npm install -g create-react-app

create-react-app my-app
cd my-app/
npm start
</code></pre>

You install the create-react-app package globally.
After that you run it and create a project called <code>my-app</code>.
Enter your project folder and then run <code>npm start</code>. If that doesn't work try running <code>npm install</code> and then <code>npm start</code>. If that doesn't work as well, try updating your node version and/or npm.

blocks|key|4386553|text|在package.json中，我更改了|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4386554|"start":+"react-scripts+start"|code-block|syntax|javascript|4386555|至|4386556|"start":+"NODE_ENV=production+node_modules/react-scripts/bin/react-scripts.js+start"|4386557|我希望这能解决一些人的问题。尽管上面的其他解决方案似乎对我不起作用。|4386558|entityMap^0|0|0|0|0|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]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

In package.json, I changed
<pre class="lang-json prettyprint-override"><code>&quot;start&quot;: &quot;react-scripts start&quot;
</code></pre>
to
<pre class="lang-json prettyprint-override"><code>&quot;start&quot;: &quot;NODE_ENV=production node_modules/react-scripts/bin/react-scripts.js start&quot;
</code></pre>
I hope this solves the problem for some people. Although the other solutions above seem not to work for me.

blocks|key|4386962|text|当您使用npm+install而不是yarn+install安装软件包时，会出现此错误，反之亦然。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4386963|entityMap^0|4|B|I|C|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|$]]

This error occurs when you Install package with <code>npm install</code> instead of <code>yarn install</code> or vice-versa.

blocks|key|4386485|text|npm+install+--save+react+react-dom+react-scripts|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4386486|上面的命令对我有效。|unstyled|4386487|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>npm install --save react react-dom react-scripts
</code></pre>

Above command worked for me.

blocks|key|4386998|text|只需安装一个Yarn就解决了这个问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4386999|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|$]]

Just doing an Yarn install solved the problem for me

blocks|key|4386860|text|在安装material-ui之后就遇到了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4386861|只需再次运行npm+install即可解决此问题。|offset|length|style|CODE|4386862|entityMap^0|0|6|B|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|$]]

Just ran into this problem after installing material-ui. 

Solved it by simply running <code>npm install</code> again.

blocks|key|4386909|text|删除包-lock.json和node_modules然后npm+install对我有效。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4386910|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|$]]

Deleting package-lock.json and node_modules then npm install worked for me.

blocks|key|4387420|text|如果您尝试了所有方法，但都不能解决问题，请尝试重命名目录名称。如果文件夹名称包含大写字母，react将不会启动。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4387421|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|$]]

If you have tried everything and nothing solved it, try to rename the directories name. react will not start if the folder's name contains uppercase letters.

blocks|key|4386285|text|在发出react-scripts+build请求后，我随机地遇到了这个"react-scripts:+command+not+fine“错误，它以前工作得很好。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4386286|简单地重新启动我的系统就解决了这个问题。|4386287|entityMap^0|3|J|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|$]]

I just randomly experienced this "react-scripts: command not found" error after issuing a <code>react-scripts build</code> request, which was previously working just fine.

A simple reboot of my system corrected the issue.

blocks|key|4386436|text|如果有人愿意只使用npm，那么运行这个npm+i+react-native-scripts+--save，然后运行npm+start或您使用的任何命令|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4386437|entityMap^0|J|X|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|$]]

if anyone is willing to use npm only, then run this <code>npm i react-native-scripts --save</code>, then npm start or whatever the command you use

blocks|key|4386512|text|我在使用最新版本的yarn+1.15.1-1时遇到问题|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4386513|我已经通过降级到更低版本的sudo+apt-get+install+yarn=1.12.3-1修复了这个问题|4386514|entityMap^0|E|8|0|D|Y|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|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|P|8|@]|D|@]|E|$]]]|I|$]]

I had issues with latest version of yarn <code>1.15.1-1</code>

I've fixed it by downgrading to lower version <code>sudo apt-get install yarn=1.12.3-1</code>

blocks|key|4386526|text|对我有效的解决方案如下所示。尝试使用此命令创建React应用程序。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4386527|create-react-app+react-app+--scripts-version+1.1.5|code-block|syntax|javascript|4386528|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|$]]

The solution that worked for me is below. Try creating React app with this command. 

<pre><code>create-react-app react-app --scripts-version 1.1.5
</code></pre>

blocks|key|4386600|text|在macOS上用@/符号重命名目录以匹配我的NPM包名称空间时，我遇到了这个错误。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4386601|当NPM命令在我的本地node_modules中查找已安装的软件包时，由于macOS重写目录路径的方式，它找不到它。在没有@/的情况下重命名目录后，我再次启动并运行。|4386602|entityMap^0|8|2|0|B|C|1P|2|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|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|R|8|@]|D|@]|E|$]]]|I|$]]

I ran into this error after renaming the directory with the <code>@/</code> symbol on macOS to match the name of my NPM package namespace. 

When the NPM command looked for installed packages in my local <code>node_modules</code>, it couldn't find it due to the way macOS was rewriting the directory path. After renaming the directory without <code>@/</code> I was up and running again.

blocks|key|4386637|text|如果您在Docker容器中遇到此问题，只需确保.dockerignore文件中没有添加node_modules即可。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4386638|我也有同样的问题，sh1+:找不到react脚本。对我来说，这就是解决方案|4386639|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|$]]

If you are having this issue in a Docker container just make sure that node_modules are not added in the .dockerignore file.

I had the same issue sh1 : react scripts not found. For me this was the solution

blocks|key|4386671|text|只是你必须恢复包来解决这个问题，所以只需运行命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4386672|npm安装或纱线安装|4386673|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|$]]

Just You have to restore packages to solve this issue,
So just run command :

npm install or yarn install

blocks|key|4387227|text|如果任何人在尝试这些解决方案后仍然有这个问题:检查你的项目路径，因为节点在处理空格的目录名称时有一些问题。我更改了所有名称中有空格的目录名称，它工作得很好。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4387228|解决方案想法来自：https://npm.community/t/react-scripts-not-found/8574|offset|length|4387229|我使用的是yarn+BTW|4387230|entityMap|0|LINK|mutability|MUTABLE|url|https://npm.community/t/react-scripts-not-found/8574^0|0|9|1G|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@$D|R|E|S|1|T]]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

If anyone still have this problem after trying these solutions: check your project path as node has some issues working with spaced dir names. I changed all directories names that had spaces in their names and it worked perfectly.

solution idea taken from: <a href="https://npm.community/t/react-scripts-not-found/8574" rel="nofollow noreferrer">https://npm.community/t/react-scripts-not-found/8574</a>

i am using yarn BTW

blocks|key|4387274|text|你既不应该使用空格，也不应该在路径中使用一些特殊字符，例如使用"&“。在我的情况下，我使用了这个路径："D:\P&D\mern“，由于这个"&”，我花了50分钟来解决这个问题！:/|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4387275|生活和学习！|4387276|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|$]]

You shoundt use neither SPACES neither some Special Caracters in you path, like for example using "&amp;". I my case I was using this path: "D:\P&amp;D\mern" and because of this "&amp;" I lost 50 minutes trying to solve the problem! :/

Living and Learning!

blocks|key|4387322|text|如果上面的解决方案不起作用，并且您看到了以下错误：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4387323|npm+ERR!+The+operation+was+rejected+by+your+operating+system.

npm+ERR!+It+is+likely+you+do+not+have+the+permissions+to+access+this+file+as+the+current+user|code-block|syntax|javascript|4387324|尝试使用sudo+npm+install|offset|length|style|CODE|4387325|entityMap^0|0|0|4|G|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|$]]

If the above solutions don't work and you saw the below error:
<pre><code>npm ERR! The operation was rejected by your operating system.

npm ERR! It is likely you do not have the permissions to access this file as the current user
</code></pre>
try with <code>sudo npm install</code>

blocks|key|4386827|text|对我来说，这是删除package-lock.json和node_modules，然后再次运行npm+install。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4386828|entityMap^0|9|H|R|C|1A|B|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|O|8|@]|D|@]|E|$]]]|G|$]]

For me it was deleting <code>package-lock.json</code> and <code>node_modules</code> and then run <code>npm install</code> again.

blocks|key|4387468|text|这些解决方案对我都不起作用。我发现问题出在我创建项目的目录中，我不确定为什么，但当我在该目录之外创建项目时，它是有效的。我的解决方案是将目录从"React/Ionic“更改为”ionic+react“。可能不仅项目本身是小写的，而且它的父文件夹也应该是小写的，或者目录名称中的"/“是问题所在。希望这能帮上忙。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4387469|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|$]]

None of these solutions worked for me. I found that the problem was the directory I was creating the project in, I am not sure why but when I created the project outside of that directory it worked. My solution was changing the directory to a new one from &quot;React/Ionic&quot; to &quot;ionic-react&quot;. It could be that not only the project itself should be lowercase, but its parent folder as well, or it could be that the &quot;/&quot; in the directory name be the issue. Hope this helped.

blocks|key|4387503|text|修复了它|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4387504|npm+install+--legacy-peer-deps|code-block|syntax|javascript|4387505|如果您使用npm进行安装，并且npm版本低于7，则npm最喜欢以更智能的方式运行。因此，它将尝试安装react和它的其他依赖项(Peer+Deps)(如果找到更高版本)，这可能会破坏react库。Attaching+-legacy-peer-deps将告诉npm“不要做新的事情”，并安装package.json中给出的东西……|4387506|顺便说一句，人们似乎觉得纱线很舒服，因为这个“即使找到也不安装更高版本”是自动内置在纱线中的。|4387507|参考：A+referenced+question|offset|length|4387508|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/66239691/what-does-npm-install-legacy-peer-deps-do-exactly-when-is-it-recommended-wh^0|0|0|0|0|3|L|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|10|8|@]|9|@$M|11|N|12|1|13]]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

fixed it with
<pre><code>npm install --legacy-peer-deps
</code></pre>
If you use npm to install and npm version is less than 7, then its npm most likey to behave in a smarter way. So, it will try to install react with its other depencies(peer deps)(higher versions if found), which will likely to break the library react. Attaching --legacy-peer-deps will tell npm &quot;not to do something new&quot;, and install whats given in package.json...
Btw people seem to find yarn comfortable because this &quot;not to install higher version if even found&quot; is built in yarn automatically
reference: <a href="https://stackoverflow.com/questions/66239691/what-does-npm-install-legacy-peer-deps-do-exactly-when-is-it-recommended-wh">A referenced question</a>

blocks|key|4387540|text|在花了太多时间尝试上面的所有解决方案后，我可以肯定地说：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4387541|如果你遇到了这个问题，请检查你的路径。如果路径包含任何特殊字符或空格，只需重命名它，并确保新路径不包含任何空格或特殊字符。然后再运行一次。|4387542|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|$]]

After spending too much time trying all the solutions above, I can say for sure:
If you ran into this issue, check your path. If the path contains any special character or spaces just rename it and make sure that the new path doesn't have any spaces or special character. Then run it again .

blocks|key|4387368|text|只需运行这些命令|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4387369|npm+install
npm+start|code-block|syntax|javascript|4387370|或|4387371|yarn+start|4387372|希望这对你有用，谢谢|4387373|entityMap^0|0|0|0|0|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]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

just run these commands
<pre><code>npm install
npm start
</code></pre>
or
<pre><code>yarn start
</code></pre>
Hope this will work for you
thank you

I cloned a react application onto my system and ran following commands

<pre><code>npm install -g create-react-app
npm install --save react react-dom
</code></pre>

After that i ran 

<pre><code>npm start 
</code></pre>

But it threw the above mentioned error, It is working fine on my other system from which i pushed it on github. But it is not working on any other system after cloning whether windows or mac.

sh: react-scripts: command not found after running npm start

容器

Ionic

我将一个react应用程序克隆到我的系统上，并运行以下命令npm install -g create-react-appnpm install --save react react-dom在那之后我跑了npm start 但是它抛出了上面提到的错误，它在我在github上推送它的另一个系统上工作得很好。但在克隆windows或mac之后，它在任何其他系统上都不起作用。

问sh: react-scripts:运行npm start后找不到命令
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回答 26

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