Can't connect as mifos after install without loading mifostenant-default

Hi,

I've installed Mifos X : fineractplatform-17.07.01.RELEASE/ (not 16.01.02 but the last version is not available in the list).

When I only load mifosplatform-tenants DB with

1. mysql -u root -pmysql mifosplatform-tenants < database/mifospltaform-tenants-first-time-install.sql
   I get : "

   Couldn't connect to server. Make sure you are using correct settings

   ."
   while the mifos user exists in the m_appuser table after install (checked with phpmyadmin).

If I load mifostenant-default DB with
#mysql -u root -pmysql mifostenant-default < database/migrations/sample_data/load_sample_data.sql
It's fine (I can connect, and work) but this step is supposed to be optional in the doc (https://mifosforge.jira.com/wiki/spaces/docs/pages/74711072/Mifos+X+Installation+on+Linux+-+Ubuntu+Server)
Optional - If you want to load sample data, otherwise you could skip this par:

1. mysql -u root -p mifostenant-default < database/migrations/sample_data/load_sample_data.sql

Can you please fix the problem or provide a simple way to build a fresh install with no sample data?

Many thanks for your help. Best regards. Olivier.