PostgreSQL problem during installation

I got this message during Windows installation, I don't get it, I mean the autentication failure, 'cause I wrote the correct postgresql admin password during the opennms installation, as well, I created before a role in postgresql because during opennms installation it wants apart from the admin user, a runtime user as well.What am I doing wrong or what do I need?
Exception in thread "main" org.opennms.core.schema.MigrationException: an error occurred getting the version from the database	at org.opennms.core.schema.Migrator.getDatabaseVersion(Migrator.java:178)	at org.opennms.core.schema.Migrator.validateDatabaseVersion(Migrator.java:206)	at org.opennms.install.Installer.install(Installer.java:226)	at org.opennms.install.Installer.main(Installer.java:949)Caused by: org.postgresql.util.PSQLException: FATAL: la autentificaci?n password fall? para el usuario ?postgres?	at org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:291)	at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:108)	at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)	at org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(AbstractJdbc2Connection.java:125)	at org.postgresql.jdbc3.AbstractJdbc3Connection.<init>(AbstractJdbc3Connection.java:30)	at org.postgresql.jdbc3.Jdbc3Connection.<init>(Jdbc3Connection.java:24)	at org.postgresql.Driver.makeConnection(Driver.java:393)	at org.postgresql.Driver.connect(Driver.java:267)	at java.sql.DriverManager.getConnection(DriverManager.java:579)	at java.sql.DriverManager.getConnection(DriverManager.java:190)	at org.opennms.netmgt.dao.db.SimpleDataSource.getConnection(SimpleDataSource.java:90)	at org.opennms.core.schema.Migrator.getDatabaseVersion(Migrator.java:166)	... 3 more

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