Grails oauth plugin: Unknown provider linkedin, check your configuration - grails

Question

How to get Connected With Linked In Grails ??
Config.groovy
oauth {
linkedin {
requestTokenUrl="https://api.linkedin.com/uas/oauth/requestToken"
accessTokenUrl="https://api.linkedin.com/uas/oauth/accessToken"
authUrl="https://api.linkedin.com/uas/oauth/authorize"
consumer.key="xxx"
consumer.secret="xxx"
}
}
plugin:
compile ":oauth:2.1.0"
And GSP :
<oauth:connect provider="linkedin">Connect</oauth:connect>
But I trying to run this code.. on browser its showing this error
org.codehaus.groovy.grails.web.taglib.exceptions.GrailsTagException
Tag [oauthLink] does not exist. No tag library found for namespace: g

Answer 1

Use oauth taglib to create button to connect with linkedin rather than g tag
<oauth:connect provider="linkedin">Connect</oauth:connect>
EDIT...................................................................................
Following is my Config.groovy
oauth {
providers {
linkedin {
api = org.scribe.builder.api.LinkedInApi
key = 'xxx'
secret = 'yyy'
callback = "http://localhost:8080/test2/oauth/linkedin/callback"
successUri = "http://localhost:8080/test2/oauthCallBack/linkedin"
failureUri = "http://localhost:8080/test2/oauthCallBack/linkedinFailure"
requestTokenUrl = "https://api.linkedin.com/uas/oauth/requestToken"
accessTokenUrl = "https://api.linkedin.com/uas/oauth/accessToken"
authUrl = "https://api.linkedin.com/uas/oauth/authorize"
}
}
}
grails.linkedin.api.url = "http://api.linkedin.com/v1/people/~:(id,first-name,last-name,email-address,date-of-birth)?format=json"
and I have a OauthCallBackController with an action linkedin
def linkedin() {
Token linkedinAccessToken = (Token) session[oauthService.findSessionKeyForAccessToken('linkedin')]
def linkedInResponse = oauthService.getLinkedInResource(linkedinAccessToken, grailsApplication.config.grails.linkedin.api.url)
def linkedinParsedResponse = JSON.parse(linkedInResponse?.getBody())
User user = User.findByLinkedInId(linkedinParsedResponse['id'])
if (user) {
springSecurityService.reauthenticate(user.username)
} else {
...
}
}
def linkedinFailure() {
render "I am back..,."
}