Note: there is missing part in the file: Code: [credentials-store] password=some_pwd_hash username=your_jolla_acount_username But Store application should add it for you. After that, run Store application and try install something (not Android support). Or if it doesn't work remove yours Jolla account and add it again.
[credentials-store] password=some_pwd_hash username=your_jolla_acount_username