Traceback (most recent call last):


 "/Users/rokas/.virtualenvs/virtualenv/bin/wdb.server.py", line 10, in <module>

from wdb_server import server


 "/Users/rokas/.virtualenvs/virtualenv/lib/python3.7/site-packages/wdb_server/__init__.py", line 374, in <module>

raise_error=False
TypeError: fetch() got multiple values for argument 'raise_error'

Traceback (most recent call last):


 "/usr/bin/beet", line 11, in <module>

load_entry_point('beets==1.4.7', 'console_scripts', 'beet')()


 "/usr/share/beets/beets/ui/__init__.py", line 1256, in main

_raw_main(args)


 "/usr/share/beets/beets/ui/__init__.py", line 1243, in _raw_main

subcommand.func(lib, suboptions, subargs)


 "/usr/share/beets/beets/ui/commands.py", line 943, in import_func

import_files(lib, paths, query)


 "/usr/share/beets/beets/ui/commands.py", line 913, in import_files

session.run()


 "/usr/share/beets/beets/importer.py", line 329, in run

pl.run_parallel(QUEUE_SIZE)


 "/usr/share/beets/beets/util/pipeline.py", line 445, in run_parallel

six.reraise(exc_info[0], exc_info[1], exc_info[2])


 "/usr/lib/python3/dist-packages/six.py", line 693, in reraise

raise value


 "/usr/share/beets/beets/util/pipeline.py", line 312, in run

out = self.coro.send(msg)


 "/usr/share/beets/beets/util/pipeline.py", line 194, in coro

func(*(args + (task,)))


 "/usr/share/beets/beets/importer.py", line 1511, in plugin_stage

func(session, task)


 "/usr/share/beets/beets/plugins.py", line 140, in wrapper

return func(*args, **kwargs)


 "/usr/share/beets/beetsplug/fetchart.py", line 807, in fetch_art

candidate = self.art_for_album(task.album, task.paths, local)


 "/usr/share/beets/beetsplug/fetchart.py", line 873, in art_for_album

for candidate in source.get(album, self, paths):


 "/usr/share/beets/beetsplug/fetchart.py", line 416, in get

self.API_ALBUMS + album.mb_releasegroupid,
TypeError: can only concatenate str (not "int") to str
