error related with "attachment" command

[anonymous]

rev 11796 ver 0.3

i attached a file "link.zip" and write down like blow

but i got a error message from trac

here are the content what has problem

[[SlideShow(theme=i18n)]]
= TItle=
* line1
* attachment:link.zip

==error message.== ============

Traceback (most recent call last):
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\trac-0.12.3-py2.6-win32.egg\trac\web\api.py", line 441, in send_error
    data, 'text/html')
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\trac-0.12.3-py2.6-win32.egg\trac\web\chrome.py", line 870, in render_template
    encoding='utf-8')
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\core.py", line 183, in render
    return encode(generator, method=method, encoding=encoding, out=out)
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\output.py", line 58, in encode
    for chunk in iterator:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\output.py", line 339, in __call__
    for kind, data, pos in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\output.py", line 826, in __call__
    for kind, data, pos in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\output.py", line 670, in __call__
    for kind, data, pos in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\output.py", line 771, in __call__
    for kind, data, pos in chain(stream, [(None, None, None)]):
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\output.py", line 586, in __call__
    for ev in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\core.py", line 288, in _ensure
    for event in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\core.py", line 288, in _ensure
    for event in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\trac-0.12.3-py2.6-win32.egg\trac\web\chrome.py", line 984, in _strip_accesskeys
    for kind, data, pos in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\core.py", line 288, in _ensure
    for event in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\trac-0.12.3-py2.6-win32.egg\trac\web\chrome.py", line 973, in _generate
    for kind, data, pos in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\base.py", line 605, in _include
    for event in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\markup.py", line 378, in _match
    ctxt, start=idx + 1, **vars):
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\markup.py", line 378, in _match
    ctxt, start=idx + 1, **vars):
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\markup.py", line 327, in _match
    for event in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\base.py", line 545, in _flatten
    for kind, data, pos in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\core.py", line 288, in _ensure
    for event in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\path.py", line 588, in _generate
    subevent = next()
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\base.py", line 605, in _include
    for event in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\markup.py", line 316, in _strip
    event = next()
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\base.py", line 545, in _flatten
    for kind, data, pos in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\core.py", line 288, in _ensure
    for event in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\path.py", line 588, in _generate
    subevent = next()
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\base.py", line 605, in _include
    for event in stream:
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\markup.py", line 316, in _strip
    event = next()
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\base.py", line 565, in _flatten
    result = _eval_expr(data, ctxt, vars)
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\base.py", line 277, in _eval_expr
    retval = expr.evaluate(ctxt)
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\genshi-0.6-py2.6.egg\genshi\template\eval.py", line 178, in evaluate
    return eval(self.code, _globals, {'__data__': data})
  File "D:\PM\Trac\.egg-cache\trac-0.12.3-py2.6-win32.egg-tmp\trac\templates\error.html", line 165, in <Expression u'shorten_line(repr(value))'>
    <td><code>${shorten_line(repr(value))}</code></td>
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\trac-0.12.3-py2.6-win32.egg\trac\mimeview\api.py", line 170, in __repr__
    path.append(repr(context.resource))
  File "C:\Program Files\VisualSVN Server\trac\python\lib\site-packages\trac-0.12.3-py2.6-win32.egg\trac\resource.py", line 118, in __repr__
    return '<Resource %r>' % (', '.join(reversed(path)))
TypeError: sequence item 0: expected string, WikiPage found