I can't connect Activiti Explorer with MySQL, I already configured the db.properties file, but it doesn't make a successful connection. Same place the mysql-connector-java-5.1.40-bin.jar connector in the lib folder, but I could not connect. db.properties db = activiti jdbc.driver = com.mysql.jdbc.Driver jdbc.url = jdbc:mysql://localhost:3306/activiti jdbc.username = root jdbc.password = 1234 Does anyone know the reason why they can't connect?