UnicodeDecodeError: 'utf8' codec can't decode byte 0xe3 [Error]

Hi every one!,
when i start the platformIO on my PC{ "OS:Windows 10 " } and try to create new project with my arduino uno i get this error:

Error: [06/14/16 03:12:27] Processing uno (platform: atmelavr, board: uno, framework: arduino)

UnicodeDecodeError: ‘utf8’ codec can’t decode byte 0xe3 in position 9: invalid continuation byte:

File “C:.pioidepenv\lib\site-packages\platformio\builder\main.py”, line 172:

print json.dumps(env.DumpIDEData())

File “C:\Python27\Lib\json_init_.py”, line 244:

return _default_encoder.encode(obj)

File “C:\Python27\Lib\json\encoder.py”, line 207:

chunks = self.iterencode(o, _one_shot=True)

File “C:\Python27\Lib\json\encoder.py”, line 270:

return _iterencode(o, 0)

[ ERROR ] Took 0.42 seconds

any one can help me with this issue ?

Hi @owis2sabry! Is there any special symbols in your username?