Google Calendar Refuse Login Password Out of no where the iCal 7 refused to sync with Google by prompting me to input password upon launched.

I tried both Google account password and application-specific password but no availability.

The error log I gotten from the Console are below:


  9/9/14 5:35:52.541 PM CalendarAgent[373]:
  [com.apple.calendar.store.log.caldav.queue] [Account refresh failed
  with error: Error Domain=CoreDAVHTTPStatusErrorDomain Code=401 "The
  operation couldn’t be completed. (CoreDAVHTTPStatusErrorDomain error
  401.)" UserInfo=0x7fe79c00f3b0 {AccountName=myemail@gmail.com, CalDAVErrFromRefresh=YES, CoreDAVHTTPHeaders={type = immutable dict, count = 12,
  entries =>    0 : Content-Type = {contents = "application/vnd.google.gdata.error+xml;
  charset=UTF-8"}   4 : alternate-protocol = {contents = "443:quic"}  5 : Content-Encoding = gzip
    6 : Server = GSE    7 : x-xss-protection = {contents = "1; mode=block"}     8 : Expires = {contents = "Tue, 09 Sep 2014 09:35:49
  GMT"}     12 : Cache-Control = {contents = "private, max-age=0"}    13 : Date =
  {contents = "Tue, 09 Sep
  2014 09:35:49 GMT"}   15 : Content-Length = 210   19 :
  x-content-type-options = nosniff  21 : x-frame-options = {contents = "SAMEORIGIN"}     22 :
  Www-Authenticate = {contents
  = "GoogleLogin realm="https://accounts.google.com/ClientLogin", service="cl""} } }]


I have no issue accessing other Google services on the Mavericks and via browser.

Anybody can help? Thanks
Go to System Preferences > Internet Accounts, remove your Google account and add it back again.

WARNING: This operation will eliminate all the data related to your account stored in your computer and will download a fresh copy (email, contacts, messages, etc.)