HELP - From Access 2007 (.accdb) to MySQL (no replies)

hi everyone
I'm trying to convert my access database to a mysql database. When I lunch the migration toolkit, after the db connection, in the reverse engineering page it shows this error message:

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Initializing JDBC driver ...
Driver class MS Access
Opening connection ...
Connection jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=C:\Users\antonacci\Documents\prova_database.accdb;DriverID=22;READONLY=true;UID=;PWD=}
The schema could not be reverse engineered (error: 0).
ReverseEngineeringAccess.reverseEngineer :[Microsoft][Driver ODBC Microsoft Access] Impossibile aprire il database "(sconosciuto)". È possibile che il database non sia riconoscibile dall'applicazione oppure che il file sia danneggiato.
Details:
sun.jdbc.odbc.JdbcOdbc.createSQLException(Unknown Source)
sun.jdbc.odbc.JdbcOdbc.standardError(Unknown Source)
sun.jdbc.odbc.JdbcOdbc.SQLDriverConnect(Unknown Source)
sun.jdbc.odbc.JdbcOdbcConnection.initialize(Unknown Source)
sun.jdbc.odbc.JdbcOdbcDriver.connect(Unknown Source)
java.sql.DriverManager.getConnection(Unknown Source)
java.sql.DriverManager.getConnection(Unknown Source)
com.mysql.grt.modules.ReverseEngineeringGeneric.establishConnection(ReverseEngineeringGeneric.java:141)
com.mysql.grt.modules.ReverseEngineeringAccess.reverseEngineer(ReverseEngineeringAccess.java:92)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
com.mysql.grt.Grt.callModuleFunction(Unknown Source)
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I think it's because the READONLY has TRUE value, but how can I change it because in the Access 2007 I can't modify the authorization setting in this access version

Can any one help me please?

Thank you