if exist %CORE_PATH%\Conf\target.txt del %CORE_PATH%\Conf\target.txt\r
if exist %CORE_PATH%\Conf\tools_def.txt del %CORE_PATH%\Conf\tools_def.txt\r
if exist %CORE_PATH%\Conf\build_rule.txt del %CORE_PATH%\Conf\build_rule.txt\r
if exist %CORE_PATH%\Conf\target.txt del %CORE_PATH%\Conf\target.txt\r
if exist %CORE_PATH%\Conf\tools_def.txt del %CORE_PATH%\Conf\tools_def.txt\r
if exist %CORE_PATH%\Conf\build_rule.txt del %CORE_PATH%\Conf\build_rule.txt\r