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An error has occured while executing Python code:

Traceback (most recent call last):
File "C:/Users/florin/.qgis2/python/plugins\\qgis2leaf\\qgis2leafdialog.py", line 119, in export2leaf
qgis2leaf_exec(self.outFileName, self.basemapName, self.width, self.height, self.extent, self.full_screen, self.layer_list, self.visible, self.opacity, self.encode2JSON,self.createcluster)
File "C:/Users/florin/.qgis2/python/plugins\\qgis2leaf\\qgis2leaf_exec.py", line 218, in qgis2leaf_exec
catindex = i.rendererV2().categoryIndexForValue(str(attribute_map[attrvalindex]))
UnicodeEncodeError: 'ascii' codec can't encode character u'\\xe2' in position 8: ordinal not in range(128)

Python version:
2.7.5 (default, May 15 2013, 22:44:16) [MSC v.1500 64 bit (AMD64)]

QGIS version:
2.4.0-Chugiak Chugiak, 8fdd08a

Python path: ['C:/PROGRA~1/QGISCH~1/apps/qgis/./python/plugins\\\\processing', 'C:\\\\Users\\\\florin\\\\.qgis2\\\\python\\\\plugins\\\\GeoCoding', 'C:/PROGRA~1/QGISCH~1/apps/qgis/./python', u'C:/Users/florin/.qgis2/python', u'C:/Users/florin/.qgis2/python/plugins', 'C:/PROGRA~1/QGISCH~1/apps/qgis/./python/plugins', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\bin\\\\python27.zip', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\DLLs', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\plat-win', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\lib-tk', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\bin', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages\\\\PIL', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages\\\\jinja2-2.7.2-py2.7.egg', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages\\\\markupsafe-0.23-py2.7-win-amd64.egg', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages\\\\pytz-2012j-py2.7.egg', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages\\\\win32', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages\\\\win32\\\\lib', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages\\\\Pythonwin', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages\\\\Shapely-1.2.18-py2.7-win-amd64.egg', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages\\\\six-1.3.0-py2.7.egg', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages\\\\wx-2.8-msw-unicode', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages\\\\xlrd-0.9.2-py2.7.egg', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\Python27\\\\lib\\\\site-packages\\\\xlwt-0.7.5-py2.7.egg', 'C:/Users/florin/.qgis2/python/plugins\\\\DataDrivenInputMask', 'C:\\\\Users\\\\florin\\\\.qgis2\\\\python\\\\plugins\\\\mmqgis/forms', '/usr/share/qgis/python', 'C:\\\\PROGRA~1\\\\QGISCH~1\\\\apps\\\\qgis\\\\python\\\\plugins\\\\fTools\\\\tools', 'C:\\\\Users\\\\florin\\\\.qgis2\\\\python\\\\plugins\\\\SelectTools/tools', 'F:/rosia montana']