Traceback (most recent call last):


 "xun_playwright.py", line 39, in <module>

page.goto('http://localhost:3000')


 "D:\Program 
s\Anaconda3\lib\site-packages\playwright\sync_api\_generated.py", line 5776, in goto

url=url, timeout=timeout, waitUntil=wait_until, referer=referer


 "D:\Program 
s\Anaconda3\lib\site-packages\playwright\_impl\_sync_base.py", line 103, in _sync

return task.result()


 "D:\Program 
s\Anaconda3\lib\site-packages\playwright\_impl\_page.py", line 461, in goto

return await self._main_frame.goto(**locals_to_params(locals()))


 "D:\Program 
s\Anaconda3\lib\site-packages\playwright\_impl\_frame.py", line 114, in goto

await self._channel.send("goto", locals_to_params(locals()))


 "D:\Program 
s\Anaconda3\lib\site-packages\playwright\_impl\_connection.py", line 36, in send

return await self.inner_send(method, params, False)


 "D:\Program 
s\Anaconda3\lib\site-packages\playwright\_impl\_connection.py", line 47, in inner_send

result = await callback.future
playwright._impl._api_types.Error: net::ERR_INVALID_ARGUMENT at http://localhost:3000

Traceback (most recent call last):


 "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/generic.py", line 2156, in _real_extract

doc = compat_etree_fromstring(webpage.encode('utf-8'))


 "/usr/local/lib/python2.7/dist-packages/youtube_dl/compat.py", line 2539, in compat_etree_fromstring

doc = _XML(text, parser=etree.XMLParser(target=_TreeBuilder(element_factory=_element_factory)))


 "/usr/local/lib/python2.7/dist-packages/youtube_dl/compat.py", line 2528, in _XML

parser.feed(text)


 "/usr/lib/python2.7/xml/etree/ElementTree.py", line 1653, in feed

self._raiseerror(v)


 "/usr/lib/python2.7/xml/etree/ElementTree.py", line 1517, in _raiseerror

raise err
ParseError: syntax error: line 1, column 0
