----------
 TestFirstmoduleModelAdminhtmlConfigData
                Incompatible argument type: Required type: MagentoConfigModelConfigReaderSourceDeployedSettingChecker. Actual type: array; File:
/public_html/app/code/Test/Firstmodule/Model/Adminhtml/Config/Data.php

Total Errors Count: 1


----------
The file data.php starts with:
`class Data extends MagentoConfigModelConfig`
`{....`