Cantor is unable to initialize installed sage backend
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
cantor (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
Steps to reproduce:
1. Install Cantor from official repository
sudo apt-get install cantor cantor-backend-sage
2. Install SageMath 7.5.1~aimsppa5 from their PPA:
sudo add-apt-repository ppa:aims/sagemath
sudo apt-get update
sudo apt-get install sagemath-
3. Make sure that SageMath is working from terminal
4. Launch Cantor from terminal with `cantor` and select Sage backend at start
Expected results:
Cantor started Sage backend, and user is able to work with it
Actual results:
Cantor started Sage backend, but user is unable to work with it. It shows window "Initializing Session" and messages in the terminal:
$ cantor
Object::disconnect: Unexpected null parameter
cantor(4104)/kdeui (kdelibs): Attempt to use QAction "" with KXMLGUIFactory!
Note:
this bug is inspired by AskUbuntu question (https:/
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: cantor-backend-sage 4:4.13.3-0ubuntu0.1
ProcVersionSign
Uname: Linux 3.13.0-139-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.27
Architecture: amd64
CurrentDesktop: KDE
Date: Wed Jan 17 16:03:35 2018
SourcePackage: cantor
UpgradeStatus: No upgrade log present (probably fresh install)
This bug also mention on KDE bugs: /bugs.kde. org/show_ bug.cgi? id=375467
https:/
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