AttributeError: 'FrontierManager' object has no attribute 'logger'

[sandeepsingh]

Hi I am trying to run Aduana example as given in the documentation.

But when i run the command scrapy crawl example, i am getting this error please help how to resolve this issue.

Stack trace of the error.

2017-05-08 14:21:35 [manager.components] DEBUG: Loading backend 'aduana.frontera.Backend'
Unhandled error in Deferred:
2017-05-08 14:21:35 [twisted] CRITICAL: Unhandled error in Deferred:

Traceback (most recent call last):
File "/home/sandeep.singh/anaconda2/lib/python2.7/site-packages/scrapy/commands/crawl.py", line 57, in run
self.crawler_process.crawl(spname, **opts.spargs)
File "/home/sandeep.singh/anaconda2/lib/python2.7/site-packages/scrapy/crawler.py", line 163, in crawl
return self._crawl(crawler, *args, **kwargs)
File "/home/sandeep.singh/anaconda2/lib/python2.7/site-packages/scrapy/crawler.py", line 167, in _crawl
d = crawler.crawl(*args, **kwargs)
File "/home/sandeep.singh/anaconda2/lib/python2.7/site-packages/twisted/internet/defer.py", line 1331, in unwindGenerator
return _inlineCallbacks(None, gen, Deferred())
--- ---
File "/home/sandeep.singh/anaconda2/lib/python2.7/site-packages/twisted/internet/defer.py", line 1185, in _inlineCallbacks
result = g.send(result)
File "/home/sandeep.singh/anaconda2/lib/python2.7/site-packages/scrapy/crawler.py", line 90, in crawl
six.reraise(*exc_info)
File "/home/sandeep.singh/anaconda2/lib/python2.7/site-packages/scrapy/crawler.py", line 74, in crawl
yield self.engine.open_spider(self.spider, start_requests)
exceptions.AttributeError: 'FrontierManager' object has no attribute 'logger'
2017-05-08 14:21:35 [twisted] CRITICAL:
Traceback (most recent call last):
File "/home/sandeep.singh/anaconda2/lib/python2.7/site-packages/twisted/internet/defer.py", line 1185, in _inlineCallbacks
result = g.send(result)
File "/home/sandeep.singh/anaconda2/lib/python2.7/site-packages/scrapy/crawler.py", line 90, in crawl
six.reraise(*exc_info)
File "/home/sandeep.singh/anaconda2/lib/python2.7/site-packages/scrapy/crawler.py", line 74, in crawl
yield self.engine.open_spider(self.spider, start_requests)
AttributeError: 'FrontierManager' object has no attribute 'logger'