Frescobaldi crashes when compiling

[Hotteterre]

On Ubuntu 17.04 beta, Frescobaldi 3.0.0 reports an error on opening a score and when attempting to compile; after every attempto to compile, the program crashes. The error log reports:

Traceback (most recent call last):
  File "/usr/share/frescobaldi/frescobaldi_app/musicview/pointandclick.py", line 44, in links
    return _cache[document]
  File "/usr/lib/python3.5/weakref.py", line 394, in __getitem__
    return self.data[ref(key)]
KeyError: <weakref at 0x7f98152903b8; to 'Document' at 0x7f98732fd3a8>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/share/frescobaldi/frescobaldi_app/musicview/widget.py", line 116, in openDocument
    self._links = pointandclick.links(document)
  File "/usr/share/frescobaldi/frescobaldi_app/musicview/pointandclick.py", line 54, in links
    t = textedit.link(link.url())
  File "/usr/share/frescobaldi/frescobaldi_app/textedit.py", line 48, in link
    m = textedit_match(url)
TypeError: expected string or bytes-like object

[Hotteterre (luca-rossetto)]

Another Frescobaldi user pointed out that the issue depends from the version of python-poppler-qt5 available in the repositories: https://github.com/wbsoft/frescobaldi/issues/838

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[John (jweber53)]

I can open an existing file or start a new file without error, but ctrl-M to compose/preview gives this error. ctrl-shift-p to publish crashes frescobaldi. Ubuntu 17.04

[Gilles TIAR (gilalya-h)]

Hi. Is someone working to find a solution to that bug? It is not easy to use Frescobaldi/Lilypond with that problem. Thanks

[John (jweber53)]

I set up a new virtual Ubuntu 17.04 machine and I get the same errors. Ctrl-M and Shift-Ctrl-P both compile the file to PDF, but no preview. I open the created PDF in evince and mouse hovering over music elements will give the line and column location in the source code, so I can use Frescobaldi's IDE except for the viewer. It takes an extra Alt-C to close the error window each time and jumping between windows. It's still a pain compared to a fully functional Frescobaldi. I'm glad to test and provide more info.

[Hotteterre (luca-rossetto)]

Hello! I managed to resolve the issue updating python-poppler-qt5 to the version from Ubuntu 17.10:

https://packages.ubuntu.com/artful/python3-poppler-qt5

Now everything seems to work fine.

[John (jweber53)]

Updating python-poppler-qt5 to the version from Ubuntu 17.10 seems to have fixed it for me, too! Thanks for the fix, Hotteterre!

[Gilles TIAR (gilalya-h)]

Hi. Please, how do you update the present python-poppler-qt5 to the version from 17.10? What is the exact name of the new python? Thanks

[Hotteterre (luca-rossetto)]

Hi, John! Once you'll have downloaded the package from the link quoted in my previous message, you'll can proceed to install right-clicking on the package itself, and selecting from the menu «Open with Software Installer» (or something of that kind: I'm not sure because I'm writing from an Italian interface). In the Software Installer window, simply click on the «Install» button.

Or, if you prefer: from a terminal, go to the folder in which you have downloaded the package, and install it with the command

sudo dpkg -i <package name>

I hope it can be useful. If not, make me know if I can help you.

[Gilles TIAR (gilalya-h)]

Hi, the first method, that I already tried, did not respond, the second yes. Frescobaldi works now for me again.
Thanks Hotteterre

[Hotteterre (luca-rossetto)]

If I can go a little OT, my favourite installation app is Gdebi. You can find it in the repositories, and using it from the right click menu («Open with other application»). I find it lighter and more clearly , clearer and cleaner than Ubuntu's default Software Installer (that sometimes seems letting understand not very much what's actually doing).

[Gilles TIAR (gilalya-h)]

The more often, I use Synaptic instead of Ubuntu's default software installer. Does Gdebi presents benefits compare to Synaptic?

[Hotteterre (luca-rossetto)]

I prefer using Synaptic too. Gdebi is useful for installing a software from a local package (downloading the relative dependencies), but not from the repositories. It's only an installer, which doesn't consider other purposes than - indeed - installing packages; Synaptic has different functions.

[Aikawa Takuya (riumutu)]

Mr Hotteterre (a good name related to another great baroque composer!), thank you for good information as I am also experiencing the same problem.

Though I have not yet tested updating the python package, I wonder if the fixes in the Artful package will be introduced also through the ordinary periodical software updates on Zesty? Or should I manually install the package?

[Hotteterre (luca-rossetto)]

Dear Aikawa, unfortunately I don't know. All I can say is that with the 17.10 package I can work without major issues: some crash occurs again, but very sporadically - but it's sufficient paying attention to save the files often.
Yes, Hotteterre, the 'real' one, is a great composer!

[John (jweber53)]

Oops. I went to test things and started looking at version numbers, I think I saw a recent update on 17.04 for libpoppler-qt5 and got confused...Never mind what I said in my last post.

[Christoph Wagner (wagner-naunhof)]

The given solution to upgrade to the python3-poppler-qt5 of artful (0.24.2-3build1) did not work for me. I still get the same error in frescobaldi.

My Versions are:

Frescobaldi: 3.0.0
Python: 3.5.3
python-ly: 0.9.4
Qt: 5.7.1
PyQt: 5.7
sip: 4.18.1
poppler: 0.44.0
python-poppler-qt: 0.24.2
OS: Linux-4.10.0-28-generic-x86_64-with-Ubuntu-17.04-zesty

I downloaded the package python3-poppler-qt5 and installed it manually with dpkg.
$ sudo dpkg -i python3-poppler-qt5_0.24.2-3build1_amd64.deb

What did I wrong or what else could be broken?

$ apt show python3-poppler-qt5
Package: python3-poppler-qt5
Version: 0.24.2-3build1
Status: install ok installed
Priority: optional
Section: python
Source: python-poppler-qt5
Maintainer: Ubuntu Developers <email address hidden>
Original-Maintainer: Debian Python Modules Team <email address hidden>
Installed-Size: 795 kB
Depends: python3 (<< 3.7), python3 (>= 3.5~), sip-py3api-11.3, libc6 (>= 2.14), libgcc1 (>= 1:3.0), libpoppler-qt5-1 (>= 0.24.5), libstdc++6 (>= 5), python3-pyqt5
Homepage: https://github.com/wbsoft/python-poppler-qt5
Download-Size: unbekannt
APT-Manual-Installed: yes
APT-Sources: /var/lib/dpkg/status
Description: Python binding to Poppler-Qt5 C++ library (Python 3)
 Python binding to libpoppler-qt5 that aims for completeness and for being
 actively maintained. The bindings closely follow the C++ library API
 documented at http://people.freedesktop.org/~aacid/docs/qt5/ .
 .
 This package contains the Python 3 binding.

[Gilles TIAR (gilalya-h)]

Hi Christoph,

I am sorry you did not find yet a solution.

The only point I see in your mail is that your package is named "0.24.2-3build1". Mine is "0.24.2-3build2".

I don't know if it is relevant.

[dino99 (9d9)]

That version is now dead
http://news.softpedia.com/news/ubuntu-17-04-zesty-zapus-has-reached-end-of-life-upgrade-to-ubuntu-17-10-now-519360.shtml