pyppeteer.errors.BrowserError: Browser closed unexpectedly

Question

Today, I learn the lib called pyppeteer,When I run my code

import asyncio
from pyppeteer import launch


async def main():
    browser = await launch(options={'devtools': True, 'headless': False})
    page = await browser.newPage()
    await page.goto('http://example.com')
    await page.screenshot({'path': 'baidu.png'})
    await browser.close()


asyncio.get_event_loop().run_until_complete(main())

I got:

pyppeteer.errors.BrowserError: Browser closed unexpectedly:

BaiJiFeiLong · Answer 1 · 2022-04-20T07:25:08.253

This is because pyppeteer will not install the required dependencies by chromium. So you should install them yourself.

Execute ldd ~/.local/share/pyppeteer/local-chromium/588429/chrome-linux/chrome | grep 'not found' to fetch the lost dependencies:

Example output:

libXcursor.so.1 => not found
libnss3.so => not found
libnssutil3.so => not found
libsmime3.so => not found
libcups.so.2 => not found
libXss.so.1 => not found
libpangocairo-1.0.so.0 => not found
libpango-1.0.so.0 => not found
libcairo.so.2 => not found
libatk-1.0.so.0 => not found
libatk-bridge-2.0.so.0 => not found
libgtk-3.so.0 => not found
libgdk-3.so.0 => not found
libgdk_pixbuf-2.0.so.0 => not found

You can install them one by one, or install google-chrome to install its dependencies.

For ubuntu/debian:

wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
echo 'deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main' | sudo tee /etc/apt/sources.list.d/google-chrome.list
sudo apt update 
sudo apt install google-chrome-stable

Execute ldd ~/.local/share/pyppeteer/local-chromium/588429/chrome-linux/chrome | grep 'not found' again, there may be some dependencies missed:

libXss.so.1 => not found

Then execute apt install libxss1 to install the missed libXss.so.1

Extra

If you want do screenshot, maybe you need some CJK fonts:

sudo apt install fonts-wqy-zenhei

That's the only thing that helped me. Thanks. – The person with the question May 22 '22 at 14:53 — The person with the question, May 22 '22 at 14:53

score 16 · Answer 2 · answered Sep 16 '20 at 17:25

For me, I was running in docker and it ended up being that chromium didn't install the needed libs properly: https://techoverflow.net/2018/06/05/how-to-fix-puppetteer-error-while-loading-shared-libraries-libx11-xcb-so-1-cannot-open-shared-object-file-no-such-file-or-directory/

score 13 · Answer 3 · answered Aug 31 '19 at 14:23

13

I got same and when I tried to start chromium from terminal I get notice that it needs to be run with no sandbox arg, so just add it and you code will work:

browser=await launch(options={'args': ['--no-sandbox']})

answered Aug 31 '19 at 14:23

Vladmir

545
1
4
8

Why is the sandbox relevant? – benjimin Apr 15 '20 at 13:54
8

Does not fix it for me. – Jerther Jun 12 '20 at 23:09

score 2 · Answer 4 · answered Sep 05 '20 at 06:40

2

I think we need to install the drivers of chrome .

sudo apt-get install chromium-chromedriver

Thats the issue i am geeting

answered Sep 05 '20 at 06:40

Navin Dalal

31
6

bers · Answer 5 · 2023-04-18T16:25:21.467

2

I had the same problem running pyppeteer via cron.

I had previously added

export http_proxy=...

to my cron env since without that, pyppeteer would time out getting documents. With http_proxy, pyppeteer would close unexpectedly.

Comparing my env (where it worked) with that of a cron job, I found what the cron job was missing was

export no_proxy=localhost,127.0.0.1

edited Apr 18 '23 at 16:25

answered Sep 18 '21 at 08:35

bers

4,817
2
40
59

1

Exactly this in my case. The only difference is I had proxy connection set up from inside the script as `os.environ['http_proxy']` – kK-Storm Apr 18 '23 at 11:09

score 1 · Answer 6 · answered Oct 30 '20 at 08:34

1

To know exactly the reason you can run these two commands on your python3 cmd:

from pyppeteer.launcher import Launcher
' '.join(Launcher().cmd)

and view the results.

But mostly the reason is that you are running your python script as root. You either need to add the "--no-sandbox" configuration or just run the script as another user (any user rather than root)

answered Oct 30 '20 at 08:34

Yashar

31
4

1

Your code shows all the options which is nice but how does it solve the problem? – InnocentBystander Dec 08 '20 at 07:33
I used `sudo` as `root` to run my code under a different user, but that still triggered the error. Running as a normal user solved the issue. – Florian Brucker Feb 16 '22 at 09:36

score 1 · Answer 7 · answered Apr 09 '23 at 06:31

None of the other answers worked for me, as the repos kept failing to locate the packages needed.

However, installing the all of the necessary dependencies can be achieved with the following.

sudo apt install -y gconf-service libasound2 libatk1.0-0 libc6 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgcc1 libgconf-2-4 libgdk-pixbuf2.0-0 libglib2.0-0 libgtk-3-0 libnspr4 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 ca-certificates fonts-liberation libappindicator1 libnss3 lsb-release xdg-utils wget

for reference: https://techoverflow.net/2020/09/29/how-to-fix-pyppeteer-pyppeteer-errors-browsererror-browser-closed-unexpectedly/

pyppeteer.errors.BrowserError: Browser closed unexpectedly

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