Gmail suddenly not working with Apple Mail
My gmail suddenly is not working with Apple Mail.
It said my username or password is wrong, but it was okay this morning.
Nevertheless, I deleted my gmail account, and re-setup it using Internet Accounts from System Preference.
However, I got the beow message:
There was a problem setting up the Mail account. An unknown error occurred.
I am sure my username and password are correct because I just login it using Safari.
Does anyone know what the cause is?
Please help~~~
iMac (27-inch, Late 2012), OS X Mountain Lion (10.8.4)