Thank you for your kind assistance.
I follow the tutorial https://gluu.org/docs/ce/3.1.5/authn-guide/passport/
after use External Providers: google ,i got "An error occurred"
my /opt/gluu/jetty/oxauth/logs/oxauth_script.log as below
2019-03-26 10:12:13,057 INFO [qtp804611486-11] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. prepareForStep called 1
2019-03-26 10:12:13,059 INFO [qtp804611486-11] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. parseProviderConfigs. Adding social providers
2019-03-26 10:12:13,063 INFO [qtp804611486-11] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. prepareForStep. A page to manually select an identity provider will be shown
2019-03-26 10:12:13,063 INFO [qtp804611486-11] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. getExtraParametersForStep called
2019-03-26 10:12:16,198 INFO [qtp804611486-11] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. authenticate called 1
2019-03-26 10:12:16,199 INFO [qtp804611486-11] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. authenticate for step 1. Retrying step 1
2019-03-26 10:12:16,200 INFO [qtp804611486-11] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. getExtraParametersForStep called
2019-03-26 10:12:16,200 INFO [qtp804611486-11] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. getCountAuthenticationSteps called
2019-03-26 10:12:16,201 INFO [qtp804611486-11] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. getExtraParametersForStep called
2019-03-26 10:12:16,348 INFO [qtp804611486-13] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. prepareForStep called 1
2019-03-26 10:12:16,348 INFO [qtp804611486-13] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. parseProviderConfigs. Adding social providers
2019-03-26 10:12:16,355 INFO [qtp804611486-13] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. getPassportRedirectUrl. Obtaining token from passport at https://gluu.example.com.tw/passport/token
2019-03-26 10:12:16,408 INFO [qtp804611486-13] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. getPassportRedirectUrl. Response was 200
2019-03-26 10:12:16,410 INFO [qtp804611486-13] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. getExtraParametersForStep called
2019-03-26 10:12:16,950 INFO [qtp804611486-13] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. prepareForStep called 1
2019-03-26 10:12:16,951 INFO [qtp804611486-13] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. parseProviderConfigs. Adding social providers
2019-03-26 10:12:16,952 INFO [qtp804611486-13] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. prepareForStep. A page to manually select an identity provider will be shown
2019-03-26 10:12:16,953 INFO [qtp804611486-13] [org.xdi.service.PythonService$PythonLoggerOutputStream] (PythonService.java:239) - Passport. getExtraParametersForStep called
my /opt/gluu/node/passport/server/logs/passport.log as below
2019-03-26T10:17:17+0000 [INFO] reloadConfiguration. Passport strategies have been parsed
2019-03-26T10:17:17+0000 [INFO] /opt/gluu/node/passport/server/idp-metadata/your_idp_name1.xml saved successfully
2019-03-26T10:17:17+0000 [INFO] /opt/gluu/node/passport/server/idp-metadata/your_idp_name2.xml saved successfully
so...it's that mean...
if i want login gluu by google
i should change "your_idp_name1.xml "?