我是新来的反应者，刚刚创建了一个应用程序，但是“ npm run”命令不起作用，我检查了其他答案，但是发现我的代码在run命令之后没有引发任何错误，在消息下方命令提示符。
我检查了github中提出的问题，但是没有帮助。 https://github.com/gatsbyjs/gatsby/issues/1767
下面是package.json文件。
{
"name": "my-app1","version": "0.1.0","private": true,"dependencies": {
"react": "^16.11.0","react-dom": "^16.11.0","react-scripts": "^3.2.0"
},"scripts": {
"start": "react-scripts start","build": "react-scripts build","test": "react-scripts test","eject": "react-scripts eject"
},"eslintConfig": {
"extends": "react-app"
},"browserslist": {
"production": [
">0.2%","not dead","not op_mini all"
],"development": [
"last 1 chrome version","last 1 firefox version","last 1 safari version"
]
}
}
该应用程序应该在本地端口上运行。