安装错误
安装puppeteer时因为需要下载chrom的缘故总是安装失败提示:
ERROR: Failed to download Chromium r515411! Set "PUPPETEER_SKIP_CHROMIUM_DOWNLOA
D" env variable to skip download.
{ Error: read ECONNRESET
at _errnoException (util.js:1024:11)
at TLSWrap.onread (net.js:615:25) code: 'ECONNRESET', errno: 'ECONNRESET', s
yscall: 'read' }
npm WARN day2@1.0.0 No repository field.
提示需要跳过安装Chromiumset PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=1
解决办法
执行npm install puppeteer --ignore-scripts
跳过安装chromuin步骤
然后在脚本中通过配置项 executablePath
,指定 Chromium 所在的位置。示例:
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch({
executablePath: '../../chromium/Chromium.app/Contents/MacOS/Chromium'
});
const page = await browser.newPage();
await page.goto('https://y.qq.com');
await page.screenshot({path: 'yqq.png'});
browser.close();
})();
手动下载Chromuim
墙里下载不到Chromuim怎么办。看仓库源码可以发现下载地址是这样的
const downloadURLs = {
linux: 'https://storage.googleapis.com/chromium-browser-snapshots/Linux_x64/%d/chrome-linux.zip',
mac: 'https://storage.googleapis.com/chromium-browser-snapshots/Mac/%d/chrome-mac.zip',
win32: 'https://storage.googleapis.com/chromium-browser-snapshots/Win/%d/chrome-win32.zip',
win64: 'https://storage.googleapis.com/chromium-browser-snapshots/Win_x64/%d/chrome-win32.zip'
}
选择对应的平台,将 %d
替换成具体的编号,编号可以从 puppeteer/package.json
中的 puppeteer.chromium_revision
查看
然后运行我们的代码就一切正常了。
哎! ,国外大公司新出的框架,库,工具我们我们大天朝内使用太难了,总是各种采坑,今天在家搞了半天才把puppeteer
运行正常