```
Traceback (most recent call last):
  File "/home/turboss/Proyectos/qtpyvcp/qtpyvcp/widgets/qtdesigner_plugin.py", line 23, in <module>
    os.path.expanduser('~/qtpyvcp-designer.log'))
  File "/home/turboss/Proyectos/qtpyvcp/qtpyvcp/utilities/logger.py", line 83, in initBaseLogger
    base_log.setLevel(LOG_LEVEL_MAPPING[log_level.upper()])
AttributeError: 'NoneType' object has no attribute 'upper'
./launch_designer.sh: línea 79:  3516 Violación de segmento  designer $UI_FILE

```