MySql - access denied, despite GRANT ALL

What am I doing wrong here?

 GRANT ALL PRIVILEGES ON *.* TO 'demoUser'@'localhost' REQUIRE NONE  
 WITH GRANT OPTION MAX_QUERIES_PER_HOUR 0 MAX_CONNECTIONS_PER_HOUR 0  
 MAX_UPDATES_PER_HOUR 0 MAX_USER_CONNECTIONS 0;

C:Usersme>"C:Program FilesMySQLMySQL Server 5.7binmysql.exe"   
  "--defaults-file=C:ProgramDataMySQLMySQL Server 5.7my.ini" -udemoUser -pitsAsecret

mysql: [Waing] Using a password on the command line interface can be insecure.
ERROR 1045 (28000): Access denied for user 'demoUser'@'localhost' (using password: YES)

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