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When I run my project for the first time during an SBT session, it throws the following exception when trying to access to a MySQL database: java.lang.NoClassDefFoundError: scala/Ordered When I run it again (and any time after it, during the same SBT session), it throws a different one: java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost/... When I was using NetBeans, the same code was working Ok. Now, As I use SBT for building and Kate to edit and manage my project manually, I get these runtime errors. MySQL JDBC driver (downloaded right from MySQL.com) JAR is in project's lib directory and all the other libraries I've put there work ok. Here is the code: import java.sql._ ... // read val dbc : Connection = DriverManager.getConnection("jdbc:mysql://localhost/...") val st : Statement = dbc.createStatement val rs : ResultSet = st.executeQuery("SELECT ...") if(rs.first) result = rs.getDouble("field") dbc.close ... // write val dbc : Connection = DriverManager.getConnection("jdbc:mysql://localhost/...") val st : Statement = dbc.createStatement st.execute("UPDATE ...") dbc.close I've seen a question that looks pretty related, but still no answer.

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