一直提示Cannot read property 'newPage' of null"

[dawang0123]

[dawang0123]

Your application is running here: http://localhost:8587
[12:18:01] ℹ ｢pswp｣: begin to generator skeleton screen
[12:18:01] ⚠ ｢pswp｣: TypeError: Cannot read property 'newPage' of null
at Skeleton.newPage (/Users/wangqian/Documents/work/task/ztjy_task_medal/node_modules/page-skeleton-webpack-plugin/src/skeleton.js:34:37)
at Skeleton.genHtml (/Users/wangqian/Documents/work/task/ztjy_task_medal/node_modules/page-skeleton-webpack-plugin/src/skeleton.js:64:29)
at Promise.all.routes.map (/Users/wangqian/Documents/work/task/ztjy_task_medal/node_modules/page-skeleton-webpack-plugin/src/skeleton.js:244:19)
at Array.map ()
at Skeleton.renderRoutes (/Users/wangqian/Documents/work/task/ztjy_task_medal/node_modules/page-skeleton-webpack-plugin/src/skeleton.js:242:31)
at SockJSConnection. (/Users/wangqian/Documents/work/task/ztjy_task_medal/node_modules/page-skeleton-webpack-plugin/src/server.js:144:57)
at emitOne (events.js:116:13)
at SockJSConnection.emit (events.js:211:7)
at Session.didMessage (/Users/wangqian/Documents/work/task/ztjy_task_medal/node_modules/sockjs/lib/transport.js:246:25)
at WebSocketReceiver.didMessage (/Users/wangqian/Documents/work/task/ztjy_task_medal/node_modules/sockjs/lib/trans-websocket.js:104:39)
at WebSocket. (/Users/wangqian/Documents/work/task/ztjy_task_medal/node_modules/sockjs/lib/trans-websocket.js:70:24)
at emitOne (events.js:116:13)
at WebSocket.emit (events.js:211:7)
at WebSocket.dispatchEvent (/Users/wangqian/Documents/work/task/ztjy_task_medal/node_modules/faye-websocket/lib/faye/websocket/api/event_target.js:24:10)
at WebSocket._receiveMessage (/Users/wangqian/Documents/work/task/ztjy_task_medal/node_modules/faye-websocket/lib/faye/websocket/api.js:142:10)
at Hybi. (/Users/wangqian/Documents/work/task/ztjy_task_medal/node_modules/faye-websocket/lib/faye/websocket/api.js:34:49)

[jayZOU]

@dawang0123
npm install puppeteer 的时候会默认下载一个Chromium ，你应该是这步出错，实际上可以直接运行本地下载好的chrome，没必要再去下载一个

//node_modules\page-skeleton-webpack-plugin\src\skeleton.js
//26行
this.browser = await puppeteer.launch({ headless })
//改成
this.browser = await puppeteer.launch({ headless, executablePath: 'you/chrome/path/chrome.exe' })

[czlin]

@jayZOU

还是会报Cannot read property 'newPage' of null

[Jmingzi]

我也遇到了同样的问题，改了也没用。

[haruhihi]

同样的问题
在 examples/sale 下 npm run defv

[Jmingzi]

@haruhihi 确实是chromeium未下载成功的问题，改用4G下载后解决。

[jayZOU]

set PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=1&&npm install puppeteer
可以用缺省的方式去安装puppeteer，这样就不会下载chromeium了，可以后面自己指定本地chrome路径

[dblate]

多执行几次 npm install puppeteer 直到成功
如果有可用的镜像仓库，可以加上以提升网络访问成功率，比如 npm install puppeteer --registry=http://registry.npm.baidu.com

[huzewei]

我也遇到这个问题。log后发现 this.browser = await puppeteer.launch({ headless }) 一直是null.多执行几次 npm install puppeteer(registry淘宝镜像) 直到成功。会有一个安装chromeium的过程。最后解决了问题。但是最后生成的样式有问题

[yangfan-coder]

cnpm install puppeteer