[SyncEvolution] Problems when auth to google carddav

Hello, I've try to sync google contacts to my debian box. The syncevolution version is 1.4-1.1, I did according to the manual: emfox@XXXX:~$ syncevolution --configure --template WebDAV username= XXXXX(a)gmail.com password=XXXX database= https://google.com:443/carddav/v1/principals/XXXX%40gmail.com/lists/default/ target-config@webdav [INFO] addressbook: looking for databases... [INFO] addressbook: okay [INFO] calendar: looking for databases... [INFO] calendar: no database to synchronize [INFO] memo: looking for databases... [INFO] memo: no database to synchronize [INFO] todo: looking for databases... [INFO] todo: no database to synchronize emfox@XXXX:~$ syncevolution --configure --template SyncEvolution_Client syncURL=local://@webdav sslverifyserver=0 username= password= webdav addressbook [INFO] addressbook: looking for databases... [INFO] addressbook: backend failed: error code from SyncEvolution authorization failed (remote, status 401): PROPFIND: Neon error code 3 = NE_AUTH, HTTP status 401: Could not authenticate to server: ignored GoogleLogin challenge [ERROR] addressbook: backend failed: error code from SyncEvolution authorization failed (remote, status 401): PROPFIND: Neon error code 3 = NE_AUTH, HTTP status 401: Could not authenticate to server: ignored GoogleLogin challenge I searched the maillist, and realised it may be an ssl issue, so I add the sslverifyserver=0 option. What could be the problem? -- Emfox Zhou GnuPG Public Key: 0xF7142EC2