Cant build a working Hue app

browbrow — Tue, 21 Apr 2026 13:57:47 GMT

Hello guys,

Im new in the world of hadoop and cloudera on my first steps i tryed to insalled a working hue App on the quick start vm for test cases.

The create_desktop_app and installation worked well without any errors but when I going to open the app on the UI (localhost:8888/app/)

It shows an server error(500).

The log showed me this :

09/Sep/2015 05:10:21 -0700] access       WARNING  127.0.0.1 cloudera - "GET /static/calculator/art/icon_calculator_48.32900276221d.png HTTP/1.1" -- 404 not found

[09/Sep/2015 05:10:21 -0700] middleware   INFO     Processing exception: "/usr/lib/hue/build/static/calculator/art/icon_calculator_48.32900276221d.png" does not exist: Traceback (most recent call last):
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.6.10-py2.6.egg/django/core/handlers/base.py", line 112, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.6.10-py2.6.egg/django/db/transaction.py", line 371, in inner
    return func(*args, **kwargs)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.6.10-py2.6.egg/django/views/static.py", line 58, in serve
    raise Http404(_('"%(path)s" does not exist') % {'path': fullpath})
Http404: "/usr/lib/hue/build/static/calculator/art/icon_calculator_48.32900276221d.png" does not exist

[09/Sep/2015 05:10:21 -0700] access       DEBUG    127.0.0.1 cloudera - "GET /static/calculator/art/icon_calculator_48.32900276221d.png HTTP/1.1"

And this:

[09/Sep/2015 05:10:48 -0700] middleware   INFO     Processing exception: unsupported operand type(s) for +: 'Undefined' and 'str': Traceback (most recent call last):
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.6.10-py2.6.egg/django/core/handlers/base.py", line 112, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Django-1.6.10-py2.6.egg/django/db/transaction.py", line 371, in inner
    return func(*args, **kwargs)
  File "/usr/lib/hue/calculator/src/calculator/views.py", line 22, in index
    return render('index.mako', request, dict(date=datetime.datetime.now()))
  File "/usr/lib/hue/desktop/core/src/desktop/lib/django_util.py", line 225, in render
    **kwargs)
  File "/usr/lib/hue/desktop/core/src/desktop/lib/django_util.py", line 146, in _render_to_response
    return django_mako.render_to_response(template, *args, **kwargs)
  File "/usr/lib/hue/desktop/core/src/desktop/lib/django_mako.py", line 125, in render_to_response
    return HttpResponse(render_to_string(template_name, data_dictionary), **kwargs)
  File "/usr/lib/hue/desktop/core/src/desktop/lib/django_mako.py", line 114, in render_to_string_normal
    result = template.render(**data_dict)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Mako-0.8.1-py2.6.egg/mako/template.py", line 443, in render
    return runtime._render(self, self.callable_, args, data)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Mako-0.8.1-py2.6.egg/mako/runtime.py", line 786, in _render
    **_kwargs_for_callable(callable_, data))
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Mako-0.8.1-py2.6.egg/mako/runtime.py", line 818, in _render_context
    _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
  File "/usr/lib/hue/build/env/lib/python2.6/site-packages/Mako-0.8.1-py2.6.egg/mako/runtime.py", line 844, in _exec_template
    callable_(context, *args, **kwargs)
  File "/tmp/tmpjgo0nD/calculator/index.mako.py", line 50, in render_body
    __M_writer(escape(unicode(shared.menubar(section='mytab'))))
  File "/tmp/tmpjgo0nD/calculator/shared_components.mako.py", line 52, in render_menubar
    __M_writer(escape(unicode( static(calculator + '/art/icon_calculator_48.png') )))
TypeError: unsupported operand type(s) for +: 'Undefined' and 'str'

[09/Sep/2015 05:10:48 -0700] access       INFO     127.0.0.1 cloudera - "GET /calculator/ HTTP/1.1"

[09/Sep/2015 05:10:39 -0700] resource     DEBUG    GET Got response: {"apps":null}

So its not able to locate the image of the icon( on localhost:8888 under "other apps" theres only a broken image symbol.

Maybe i forgett some steps?

So is there any easy way to fix this? Just change some paths?

Thansk for help!

Re: Cant build a working Hue app

Romainr — Thu, 10 Sep 2015 17:41:20 GMT

I just tried and it looks like a bug:
https://issues.cloudera.org/browse/HUE-2965

Romain

Re: Cant build a working Hue app

jennykim — Thu, 10 Sep 2015 21:57:07 GMT

This has been resolved, thanks for reporting!

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Cant build a working Hue app

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