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我使用 nbconvert 使用以下代码将笔记本转换为 pdf：

(base) C:\Users\25470\Desktop\Data Projects\Quantium Virtual Internship\Assingment 2>jupyter nbconvert task2.ipynb --to webpdf

我得到以下输出：

[NbConvertApp] Converting notebook task2.ipynb to webpdf
[NbConvertApp] Building PDF

那么这个错误：

Traceback (most recent call last):
  File "d:\Anaconda3\Scripts\jupyter-nbconvert-script.py", line 10, in <module>
    sys.exit(main())
  File "d:\Anaconda3\lib\site-packages\jupyter_core\application.py", line 270, in launch_instance
    return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
  File "d:\Anaconda3\lib\site-packages\traitlets\config\application.py", line 845, in launch_instance
    app.start()
  File "d:\Anaconda3\lib\site-packages\nbconvert\nbconvertapp.py", line 350, in start
    self.convert_notebooks()
  File "d:\Anaconda3\lib\site-packages\nbconvert\nbconvertapp.py", line 524, in convert_notebooks
    self.convert_single_notebook(notebook_filename)
  File "d:\Anaconda3\lib\site-packages\nbconvert\nbconvertapp.py", line 489, in convert_single_notebook
    output, resources = self.export_single_notebook(notebook_filename, resources, input_buffer=input_buffer)
  File "d:\Anaconda3\lib\site-packages\nbconvert\nbconvertapp.py", line 418, in export_single_notebook
    output, resources = self.exporter.from_filename(notebook_filename, resources=resources)
  File "d:\Anaconda3\lib\site-packages\nbconvert\exporters\exporter.py", line 181, in from_filename
    return self.from_file(f, resources=resources, **kw)
  File "d:\Anaconda3\lib\site-packages\nbconvert\exporters\exporter.py", line 199, in from_file
    return self.from_notebook_node(nbformat.read(file_stream, as_version=4), resources=resources, **kw)
  File "d:\Anaconda3\lib\site-packages\nbconvert\exporters\webpdf.py", line 93, in from_notebook_node
    pdf_data = self.run_pyppeteer(html)
  File "d:\Anaconda3\lib\site-packages\nbconvert\exporters\webpdf.py", line 83, in run_pyppeteer
    pdf_data = pool.submit(run_coroutine, main()).result()
  File "d:\Anaconda3\lib\concurrent\futures\_base.py", line 439, in result
    return self.__get_result()
  File "d:\Anaconda3\lib\concurrent\futures\_base.py", line 388, in __get_result
    raise self._exception
  File "d:\Anaconda3\lib\concurrent\futures\thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "d:\Anaconda3\lib\site-packages\nbconvert\exporters\webpdf.py", line 82, in run_coroutine
    return loop.run_until_complete(coro)
  File "d:\Anaconda3\lib\asyncio\base_events.py", line 616, in run_until_complete
    return future.result()
  File "d:\Anaconda3\lib\site-packages\nbconvert\exporters\webpdf.py", line 49, in main
    await page.goto('data:text/html,'+html, waitUntil='networkidle0')
  File "d:\Anaconda3\lib\site-packages\pyppeteer\page.py", line 885, in goto
    raise error
pyppeteer.errors.TimeoutError: Navigation Timeout Exceeded: 30000 ms exceeded.

这是什么意思 ？其他文件转换正常。Myb文件大小是问题，文件是2.5mb。

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