Loaded plugins: fastestmirror Options Error: Error parsing '': invalid boolean value

vim /etc/yum/pluginconf.d/fastestmirror.conf

[main]
enabled=0 #改成0
verbose=0
socket_timeout=3
hostfilepath=/var/cache/yum/timedhosts.txt
maxhostfileage=10
maxthreads=15
#exclude=.gov, facebook