/usr/bin/kalgebra:11:QHash:QHash:Analitza::ExpressionTypeChecker::isVariableDefined:Analitza::ExpressionTypeChecker::visit:Analitza::Ci::accept

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding kalgebra. This problem was most recently seen with package version 4:15.12.3-0ubuntu1, the problem page at https://errors.ubuntu.com/problem/a2cef9a31b4b11ff5e5d42e7d8e307f3db3568df contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker you can request it at http://forms.canonical.com/reports/.