Browser-agent not working - Playwright error

[arsaboo]

Tried using browser-agent and I am getting this error:

Agent 0: Generating
{
    "thoughts": [
        "I need to scrape the top 5 news items from Hacker News.",
        "I will use a browser agent to navigate and extract the information."
    ],
    "tool_name": "browser_agent",
    "tool_args": {
        "message": "Open https://news.ycombinator.com/ and extract the titles and links of the top 5 news items. End task.",
        "reset": "true"
    }
}
Agent 0: Using tool 'browser_agent'
Message: Open https://news.ycombinator.com/ and extract the titles and links of the top 5 news items. End task.
Reset: true
ERROR    [browser] Failed to initialize Playwright browser: BrowserType.launch: Executable doesn't exist at /root/.cache/ms-playwright/chromium_headless_shell-1148/chrome-linux/headless_shell
╔════════════════════════════════════════════════════════════╗
║ Looks like Playwright was just installed or updated.       ║
║ Please run the following command to download new browsers: ║
║                                                            ║
║     playwright install                                     ║
║                                                            ║
║ <3 Playwright Team                                         ║
╚════════════════════════════════════════════════════════════╝
Traceback (most recent call last):
Traceback (most recent call last):
  File "/a0/agent.py", line 310, in monologue
    tools_result = await self.process_tools(agent_response)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/a0/agent.py", line 637, in process_tools
    response = await tool.execute(**tool_args)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/a0/python/tools/browser_agent.py", line 183, in execute
    result = await task.result()
             ^^^^^^^^^^^^^^^^^^^
  File "/a0/python/helpers/defer.py", line 114, in result
    return await loop.run_in_executor(None, _get_result)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/a0/python/helpers/defer.py", line 106, in _get_result
    result = self._future.result(timeout)  # type: ignore
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/concurrent/futures/_base.py", line 449, in result
    return self.__get_result()
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/concurrent/futures/_base.py", line 401, in __get_result
    raise self._exception
  File "/a0/python/helpers/defer.py", line 83, in _run
    return await self.func(*self.args, **self.kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>  9 stack lines skipped <<<
  File "/opt/venv/lib/python3.11/site-packages/browser_use/browser/browser.py", line 89, in _init
    browser = await self._setup_browser(playwright)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/lib/python3.11/site-packages/browser_use/browser/browser.py", line 152, in _setup_browser
    browser = await playwright.chromium.launch(
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/lib/python3.11/site-packages/playwright/async_api/_generated.py", line 14404, in launch
    await self._impl_obj.launch(
  File "/opt/venv/lib/python3.11/site-packages/playwright/_impl/_browser_type.py", line 95, in launch
    Browser, from_channel(await self._channel.send("launch", params))
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/lib/python3.11/site-packages/playwright/_impl/_connection.py", line 61, in send
    return await self._connection.wrap_api_call(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/lib/python3.11/site-packages/playwright/_impl/_connection.py", line 528, in wrap_api_call
    raise rewrite_error(error, f"{parsed_st['apiName']}: {error}") from None
playwright._impl._errors.Error: BrowserType.launch: Executable doesn't exist at /root/.cache/ms-playwright/chromium_headless_shell-1148/chrome-linux/headless_shell
╔════════════════════════════════════════════════════════════╗
║ Looks like Playwright was just installed or updated.       ║
║ Please run the following command to download new browsers: ║
║                                                            ║
║     playwright install                                     ║
║                                                            ║
║ <3 Playwright Team                                         ║
╚════════════════════════════════════════════════════════════╝

I am running agent-zero using docker with Ollama.

[Jukeman9]

after you ask the agent to install playwright, then it still does not work as instead of opening the urls new card 'about:blank' is being opened and it throws out an error @frdel

[arsaboo]

@Jukeman9 you gave me the idea and I asked the agent to install playwright and the dependencies and now browser-agent is working. However, it is not giving the output:

Text	
'NoneType' object has no attribute 'strip'


Traceback (most recent call last):
Traceback (most recent call last):
  File "/[a0](http://192.168.2.162:50001/#)/[agent.py](http://192.168.2.162:50001/#)", line 310, in monologue
    tools_result = await self.process_tools(agent_response)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/[a0](http://192.168.2.162:50001/#)/[agent.py](http://192.168.2.162:50001/#)", line 639, in process_tools
    await tool.after_execution(response)
  File "/[a0](http://192.168.2.162:50001/#)/[python](http://192.168.2.162:50001/#)/[helpers](http://192.168.2.162:50001/#)/[tool.py](http://192.168.2.162:50001/#)", line 34, in after_execution
    text = response.message.strip()
           ^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'strip'


AttributeError: 'NoneType' object has no attribute 'strip'

[romano]

For some reason the script expects chromium_headless_shell-1148 but chromium_headless_shell-1155 is available instead. Instead of telling the AI to install playwright I did it myself manually (/a0/docker/run/fs/ins/install_playwright.sh or /ins/install_playwright.sh, can't remember) and it replaced the files with expected ones. Anyway, the same result as you, sorta works but not really.