title: Error when I start React Application with "npm start"
body: <p>I'm trying to start my ReactApp with <code>npm start</code> but I get this error.</p>
  <p><a href="https://i.stack.imgur.com/ALgw1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ALgw1.png" alt="enter image description here" /></a></p>
  <p>This is my <code>2020-12-04T08_46_32_422Z-debug.log</code>.</p>
  <pre><code>0 info it worked if it ends with ok
  1 verbose cli [
  1 verbose cli   'C:\\Program Files\\nodejs\\node.exe',
  1 verbose cli   'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
  1 verbose cli   'start'
  1 verbose cli ]
  2 info using npm@6.14.5
  3 info using node@v14.4.0
  4 verbose run-script [ 'prestart', 'start', 'poststart' ]
  5 info lifecycle weather-app@0.1.0~prestart: weather-app@0.1.0
  6 info lifecycle weather-app@0.1.0~start: weather-app@0.1.0
  7 verbose lifecycle weather-app@0.1.0~start: unsafe-perm in lifecycle true
  8 verbose lifecycle weather-app@0.1.0~start: PATH: C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;C:\Users\Caín\reactProjects\WeatherApp\weather-app\node_modules\.bin;C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\bin;C:\Users\Caín\bin;C:\Program Files\Common Files\Oracle\Java\javapath;C:\Python27;C:\Python27\Scripts;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0;C:\WINDOWS\System32\OpenSSH;C:\ProgramData\chocolatey\bin;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\Git\cmd;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\Program Files\nodejs;C:\Users\Caín\AppData\Local\Microsoft\WindowsApps;C:\Users\Caín\AppData\Local\atom\bin;C:\Users\Caín\AppData\Roaming\npm;D:\Programas\Microsoft VS Code\bin;C:\Program Files\heroku\bin
  9 verbose lifecycle weather-app@0.1.0~start: CWD: C:\Users\Caín\reactProjects\WeatherApp\weather-app
  10 silly lifecycle weather-app@0.1.0~start: Args: [ '/d /s /c', 'react-scripts start' ]
  11 silly lifecycle weather-app@0.1.0~start: Returned: code: 1  signal: null
  12 info lifecycle weather-app@0.1.0~start: Failed to exec start script
  13 verbose stack Error: weather-app@0.1.0 start: `react-scripts start`
  13 verbose stack Exit status 1
  13 verbose stack     at EventEmitter.&lt;anonymous&gt; (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\index.js:332:16)
  13 verbose stack     at EventEmitter.emit (events.js:315:20)
  13 verbose stack     at ChildProcess.&lt;anonymous&gt; (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14)
  13 verbose stack     at ChildProcess.emit (events.js:315:20)
  13 verbose stack     at maybeClose (internal/child_process.js:1051:16)
  13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:287:5)
  14 verbose pkgid weather-app@0.1.0
  15 verbose cwd C:\Users\Caín\reactProjects\WeatherApp\weather-app
  16 verbose Windows_NT 10.0.18363
  17 verbose argv &quot;C:\\Program Files\\nodejs\\node.exe&quot; &quot;C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js&quot; &quot;start&quot;
  18 verbose node v14.4.0
  19 verbose npm  v6.14.5
  20 error code ELIFECYCLE
  21 error errno 1
  22 error weather-app@0.1.0 start: `react-scripts start`
  22 error Exit status 1
  23 error Failed at the weather-app@0.1.0 start script.
  23 error This is probably not a problem with npm. There is likely additional logging output above.
  24 verbose exit [ 1, true ]
  </code></pre>
  <p>Commands I tried:</p>
  <p><code>npm install --save-dev cross-env</code></p>
  <p><code>npm install</code></p>
  <p><code>npm run build</code></p>
  <p><code>npm cache clean --force</code></p>
  <p><code>npm  run build -prod</code></p>
  <p><code>node --max_old_space_size=4096 node_modules/@angular/cli/bin/ng build --prod</code></p>
  <p>Anyone knows how to help me? And please, if you need more information, just let me know!
  A lot of thanks!!</p>
  <p>EDIT1: At the request of a very friendly user, I show you my <code>package.json</code> file:</p>
  <pre><code>{
    &quot;name&quot;: &quot;weather-app&quot;,
    &quot;version&quot;: &quot;0.1.0&quot;,
    &quot;private&quot;: true,
    &quot;dependencies&quot;: {
      &quot;@testing-library/jest-dom&quot;: &quot;^5.11.4&quot;,
      &quot;@testing-library/react&quot;: &quot;^11.1.0&quot;,
      &quot;@testing-library/user-event&quot;: &quot;^12.1.10&quot;,
      &quot;react&quot;: &quot;^17.0.1&quot;,
      &quot;react-dom&quot;: &quot;^17.0.1&quot;,
      &quot;react-scripts&quot;: &quot;4.0.1&quot;,
      &quot;web-vitals&quot;: &quot;^0.2.4&quot;
    },
    &quot;scripts&quot;: {
      &quot;start&quot;: &quot;react-scripts start&quot;,
      &quot;build&quot;: &quot;react-scripts build&quot;,
      &quot;test&quot;: &quot;react-scripts test&quot;,
      &quot;eject&quot;: &quot;react-scripts eject&quot;
    },
    &quot;eslintConfig&quot;: {
      &quot;extends&quot;: [
        &quot;react-app&quot;,
        &quot;react-app/jest&quot;
      ]
    },
    &quot;browserslist&quot;: {
      &quot;production&quot;: [
        &quot;&gt;0.2%&quot;,
        &quot;not dead&quot;,
        &quot;not op_mini all&quot;
      ],
      &quot;development&quot;: [
        &quot;last 1 chrome version&quot;,
        &quot;last 1 firefox version&quot;,
        &quot;last 1 safari version&quot;
      ]
    },
    &quot;devDependencies&quot;: {
      &quot;cross-env&quot;: &quot;^7.0.3&quot;
    }
  }
  
  </code></pre>
  <p><em>I'm writing more text because I can't send the post, hahaha, well, a greeting from Barcelona, have a great Friday!</em></p>