Unicode error: label empty or too long

[letran]

Hi,
While I was running sphinx-quickstart in ubuntu something happened and I got this:

Traceback (most recent call last):
  File "/usr/local/bin/sphinx-quickstart", line 9, in <module>
    load_entry_point('Sphinx==1.3.1', 'console_scripts', 'sphinx-quickstart')()
  File "/usr/local/lib/python2.7/dist-packages/Sphinx-1.3.1-py2.7.egg/sphinx/quickstart.py", line 1570, in main
    generate(d)
  File "/usr/local/lib/python2.7/dist-packages/Sphinx-1.3.1-py2.7.egg/sphinx/quickstart.py", line 1303, in generate
    d['project_url'] = urlquote(d['project'].encode('idna'))
  File "/usr/lib/python2.7/encodings/idna.py", line 164, in encode
    result.append(ToASCII(label))
  File "/usr/lib/python2.7/encodings/idna.py", line 103, in ToASCII
    raise UnicodeError("label empty or too long")
UnicodeError: label empty or too long

I only put the name of the project, the name of the author and the version, the rest is by default. I dont know what could be happening, because I am following the instructions and I am a novice in this topic.

[letran]

Finally I solved the problem, it was only a blank space