Grails

Loading Grails 2.3.8 |Configuring classpath Error | [main] WARN org.apache.http.client.protocol.RequestProxyAuthentication - NEGOTIATE authentication error: No valid credentials provided (Mechanism level: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)) Error | [main] WARN org.apache.http.client.protocol.RequestProxyAuthentication - NEGOTIATE authentication error: No valid credentials provided (Mechanism level: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)) Error | [main] WARN org.apache.http.client.protocol.RequestProxyAuthentication - NEGOTIATE authentication error: No valid credentials provided (Mechanism level: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt))