question NiFi: Unknown user with identity 'admin'. Contact the system administrator. in Support Questions

question NiFi: Unknown user with identity 'admin'. Contact the system administrator. in Support Questions https://community.cloudera.com/t5/Support-Questions/NiFi-Unknown-user-with-identity-admin-Contact-the-system/m-p/209269#M171223 I get error "Unknown user with identity 'admin'. Contact the system administrator." with login.I installed nifi 1.7.1 and nifi-toolkit 1.7.1...But, It occurs error message.nifi-user.log is :<PRE>2018-08-02 01:17:44,001 INFO [NiFi Web Server-22] o.a.n.w.a.c.AccessDeniedExceptionMapper identity[admin], groups[] does not have permission to access the requested resource. Unknown user with identity 'admin'. Returning Forbidden response. 2018-08-02 01:19:13,176 INFO [NiFi Web Server-70] o.a.n.w.s.NiFiAuthenticationFilter Attempting request for (<JWT token>) GET <A href="https://localhost:9443/nifi-api/flow/current-user" target="_blank">https://localhost:9443/nifi-api/flow/current-user</A> (source ip: xxx.xxx.xx.xx) 2018-08-02 01:19:13,178 INFO [NiFi Web Server-70] o.a.n.w.s.NiFiAuthenticationFilter Authentication success for admin login-identity-providers.xml:</PRE>authorizers.xml:<authorizer> <identifier>file-provider</identifier> <class>org.apache.nifi.authorization.FileAuthorizer</class> <property name="Authorizations File">./conf/authorizations.xml</property> <property name="Users File">./conf/users.xml</property> <property name="Initial Admin Identity">admin</property> <property name="Legacy Authorized Users File"></property> <property name="Node Identity 1">CN=admin,OU=NIFI</property> </authorizer>login-identity-providers.xml :<provider> <identifier>ldap-provider</identifier> <class>org.apache.nifi.ldap.LdapProvider</class> <property name="Authentication Strategy">SIMPLE</property> <property name="Manager DN">CN=admin,OU=NIFI,DC=evidnet,DC=com</property> <property name="Manager Password">evidnet</property> <property name="TLS - Keystore"></property> <property name="TLS - Keystore Password"></property> <property name="TLS - Keystore Type"></property> <property name="TLS - Truststore"></property> <property name="TLS - Truststore Password"></property> <property name="TLS - Truststore Type"></property> <property name="TLS - Client Auth"></property> <property name="TLS - Protocol"></property> <property name="TLS - Shutdown Gracefully"></property> <property name="Referral Strategy">IGNORE</property> <property name="Connect Timeout">10 secs</property> <property name="Read Timeout">10 secs</property> <property name="Url">ldap://localhost:389</property><property name="User Search Base">OU=NIFI,DC=evidnet,DC=com</property><property name="User Search Filter">cn={0}</property><property name="Identity Strategy">USE_USERNAME</property><property name="Authentication Expiration">2 hours</property></provider> Thu, 02 Aug 2018 08:23:22 GMT wluns32 2018-08-02T08:23:22Z