我正在尝试从脚本运行我的scrapy。我正在使用CrawlerProcess，我只有一个蜘蛛要运行。
我已经被这个错误卡住了一段时间了，我已经尝试了很多方法来更改设置，但是每次我运行蜘蛛程序时，我都会得到
twisted.internet.error.ReactorNotRestartable
我一直在寻找解决这个错误的方法，我相信只有当你多次调用process.start（）时才会出现这个错误，但是我没有。
下面是我的代码：

import scrapy
from scrapy.utils.log import configure_logging

from scrapyprefect.items import ScrapyprefectItem
from scrapy.crawler import CrawlerProcess
from scrapy.utils.project import get_project_settings

class SpiderSpider(scrapy.Spider):
    name = 'spider'
    start_urls = ['http://www.nigeria-law.org/A.A.%20Macaulay%20v.%20NAL%20Merchant%20Bank%20Ltd..htm']

    def __init__(self, *args,**kwargs):
        super().__init__(*args,**kwargs)

    def parse(self, response):
        item = ScrapyprefectItem()
        ...

        yield item

process = CrawlerProcess(settings=get_project_settings())
process.crawl('spider')
process.start()

错误：

Traceback (most recent call last):
  File "/Users/pluggle/Documents/Upwork/scrapyprefect/scrapyprefect/spiders/spider.py", line 59, in <module>
    process.start()
  File "/Users/pluggle/Documents/Upwork/scrapyprefect/venv/lib/python3.7/site-packages/scrapy/crawler.py", line 309, in start
    reactor.run(installSignalHandlers=False)  # blocking call
  File "/Users/pluggle/Documents/Upwork/scrapyprefect/venv/lib/python3.7/site-packages/twisted/internet/base.py", line 1282, in run
    self.startRunning(installSignalHandlers=installSignalHandlers)
  File "/Users/pluggle/Documents/Upwork/scrapyprefect/venv/lib/python3.7/site-packages/twisted/internet/base.py", line 1262, in startRunning
    ReactorBase.startRunning(self)
  File "/Users/pluggle/Documents/Upwork/scrapyprefect/venv/lib/python3.7/site-packages/twisted/internet/base.py", line 765, in startRunning
    raise error.ReactorNotRestartable()
twisted.internet.error.ReactorNotRestartable

我注意到只有当我试图将我的项目保存到mongodb时才会发生这种情况。pipeline.py:

import logging
import pymongo

class ScrapyprefectPipeline(object):
    collection_name = 'SupremeCourt'

    def __init__(self, mongo_uri, mongo_db):
        self.mongo_uri = mongo_uri
        self.mongo_db = mongo_db

    @classmethod
    def from_crawler(cls, crawler):
        # pull in information from settings.py
        return cls(
            mongo_uri=crawler.settings.get('MONGO_URI'),
            mongo_db=crawler.settings.get('MONGO_DATABASE')
        )

    def open_spider(self, spider):
        # initializing spider
        # opening db connection
        self.client = pymongo.MongoClient(self.mongo_uri)
        self.db = self.client[self.mongo_db]

    def close_spider(self, spider):
        # clean up when spider is closed
        self.client.close()

    def process_item(self, item, spider):
        # how to handle each post
        self.db[self.collection_name].insert(dict(item))
        logging.debug("Post added to MongoDB")
        return item

如果我将www.example.com更改pipeline.py为默认值，即...

import logging
import pymongo

class ScrapyprefectPipeline(object):
    def process_item(self, item, spider):
        return item

...脚本运行良好。我认为这与我如何设置pycharm设置来运行代码有关。因此，为了参考，我还包括了我的pycharm设置

我希望有人能帮助我。让我知道如果需要更多的细节