爬取知乎，出现playwright.impl.error

⚠️ 提交前确认

• [ ✔] 我已经仔细阅读了项目使用过程中的常见问题汇总
• [✔ ] 我已经搜索并查看了已关闭的issues
• [ ✔] 我确认这不是由于滑块验证码、Cookie过期、Cookie提取错误、平台风控等常见原因导致的问题

❓ 问题描述

爬取知乎时，扫码登陆后返回报错playwright.impl.error，已确定不是梯子问题

🔍 使用场景

• 目标平台: 知乎
• 使用功能: 根据关键词爬取帖子

💻 环境信息

• 操作系统: win10
• Python版本: 3.9.21
• 是否使用IP代理: 无
• 是否使用VPN翻墙软件：无
• 目标平台(抖音/小红书/微博等): 知乎

📋 错误日志

(crawlEnv) PS E:\GraProgram\Crawler\MediaCrawler> python main.py                                            
2025-02-21 23:39:32 MediaCrawler INFO (core.py:345) - [ZhihuCrawler.launch_browser] Begin create browser context ...
2025-02-21 23:39:34 MediaCrawler INFO (core.py:316) - [ZhihuCrawler.create_zhihu_client] Begin create zhihu API client ...
2025-02-21 23:39:34 MediaCrawler INFO (client.py:137) - [ZhiHuClient.pong] Begin to pong zhihu...
2025-02-21 23:39:34 MediaCrawler ERROR (client.py:147) - [ZhiHuClient.pong] Ping zhihu failed: SyntaxError: 语法错误, and try to login again...
2025-02-21 23:39:34 MediaCrawler INFO (login.py:58) - [ZhiHu.begin] Begin login zhihu ...
2025-02-21 23:39:34 MediaCrawler INFO (login.py:74) - [ZhiHu.login_by_qrcode] Begin login zhihu by qrcode ...
Traceback (most recent call last):
  File "E:\GraProgram\Crawler\MediaCrawler\main.py", line 66, in <module>
    asyncio.get_event_loop().run_until_complete(main())
  File "E:\anaconda3\envs\crawlEnv\lib\asyncio\base_events.py", line 647, in run_until_complete
    return future.result()
  File "E:\GraProgram\Crawler\MediaCrawler\main.py", line 56, in main
    await crawler.start()
  File "E:\GraProgram\Crawler\MediaCrawler\media_platform\zhihu\core.py", line 85, in start
    await login_obj.begin()
  File "E:\GraProgram\Crawler\MediaCrawler\media_platform\zhihu\login.py", line 60, in begin
    await self.login_by_qrcode()
  File "E:\GraProgram\Crawler\MediaCrawler\media_platform\zhihu\login.py", line 77, in login_by_qrcode
    base64_qrcode_img = await utils.find_qrcode_img_from_canvas(
  File "E:\GraProgram\Crawler\MediaCrawler\tools\crawler_util.py", line 68, in find_qrcode_img_from_canvas
    canvas = await page.wait_for_selector(canvas_selector)
  File "E:\anaconda3\envs\crawlEnv\lib\site-packages\playwright\async_api\_generated.py", line 7786, in wait_for_selector
    await self._impl_obj.wait_for_selector(
  File "E:\anaconda3\envs\crawlEnv\lib\site-packages\playwright\_impl\_page.py", line 373, in wait_for_selector
    return await self._main_frame.wait_for_selector(**locals_to_params(locals()))
  File "E:\anaconda3\envs\crawlEnv\lib\site-packages\playwright\_impl\_frame.py", line 323, in wait_for_selector
    await self._channel.send("waitForSelector", locals_to_params(locals()))
  File "E:\anaconda3\envs\crawlEnv\lib\site-packages\playwright\_impl\_connection.py", line 59, in send
    return await self._connection.wrap_api_call(
  File "E:\anaconda3\envs\crawlEnv\lib\site-packages\playwright\_impl\_connection.py", line 509, in wrap_api_call
    return await cb()
  File "E:\anaconda3\envs\crawlEnv\lib\site-packages\playwright\_impl\_connection.py", line 97, in inner_send
    result = next(iter(done)).result()
playwright._impl._errors.TimeoutError: Timeout 30000ms exceeded.

📷 错误截图

Start by running the reported command and trace the QR-code login from media_platform/zhihu/login.py into tools/crawler_util.py. Inspect the canvas selector wait that times out, then verify the Zhihu keyword-crawling flow can complete QR login without the Playwright TimeoutError.