I installed Nextcloud newly, but the following error log is output periodically.
It looks like it is being output when Cron is running, but how do I deal with it?
It seems that there is no problem with the operation of NextCloud, but is there any adverse affected error?
If you disable Opcache, it seems that error will not come out.
{"reqId":"hutA6R06EvELNBtgHGMa","level":3,"time":"2017-11-27T05:15:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"--","url":"--","message":"Narrowing occurred during type inference. Please file a bug report on bugs.php.net at \/var\/www\/nextcloud\/lib\/composer\/composer\/ClassLoader.php#444","userAgent":"--","version":"12.0.3.3"}
{"reqId":"aeitdaduJqAuMgErT6Wl","level":3,"time":"2017-11-27T05:30:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"--","url":"--","message":"Narrowing occurred during type inference. Please file a bug report on bugs.php.net at \/var\/www\/nextcloud\/lib\/composer\/composer\/ClassLoader.php#444","userAgent":"--","version":"12.0.3.3"}
{"reqId":"DSSQhuGIPyzb5mKPBdBC","level":3,"time":"2017-11-27T05:45:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"--","url":"--","message":"Narrowing occurred during type inference. Please file a bug report on bugs.php.net at \/var\/www\/nextcloud\/lib\/composer\/composer\/ClassLoader.php#444","userAgent":"--","version":"12.0.3.3"}
{"reqId":"dphgsDR28Mq9MB3PoTHh","level":3,"time":"2017-11-27T06:00:02+00:00","remoteAddr":"","user":"--","app":"PHP","method":"--","url":"--","message":"Narrowing occurred during type inference. Please file a bug report on bugs.php.net at \/var\/www\/nextcloud\/lib\/composer\/composer\/ClassLoader.php#444","userAgent":"--","version":"12.0.3.3"}
{"reqId":"R57n3TgXEKqYPIthdIFg","level":3,"time":"2017-11-27T06:15:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"--","url":"--","message":"Narrowing occurred during type inference. Please file a bug report on bugs.php.net at \/var\/www\/nextcloud\/lib\/composer\/composer\/ClassLoader.php#444","userAgent":"--","version":"12.0.3.3"}