How to fix "No data available" in reports
By default, reports are generated for the transactions using the default currency set in the application.
If you import an XML file using a different currency than the default set in the app, you might not be able to view any data in your reports.
To fix this, go to "Settings -> Accounts -> Default Currency" and set the default currency to that used by your transactions.
Then visit the reports again and you should see your data visualized.