User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:21.0) Gecko/20100101 Firefox/21.0 Build Identifier: I installed Fedora beta RC2, applied all updates, and installed sagemath (note that xterm is not installed, I use caja). Reproducible: Always Steps to Reproduce: 1.clicking on sagemath in the menu 2. 3. Actual Results: clicking on sagemath in the menu brings up a dialog: Could not launch 'Sagemath' Failed to execute child process "xterm" (no such file or directory) Expected Results: Sagemath should come up in a terminal (I've compiled & run sage directly, so I know what to expect)
still a problem in F19 TC3
Sorry for the delay. I confess I do not know how to query or force the settings of the default terminal application to be used by whatever application is reading the sagemath.desktop file, as it only says: Terminal=true I know about: $ xdg-settings --list Known properties: default-url-scheme-handler Default handler for URL scheme default-web-browser Default web browser I am reassing to xdg-utils maintainer, to attempt to properly triage the problem, so that it can be reassigned better.
I don't think xdg-utils has any facility for terminal handling. It includes an xdg-terminal tool (which is currently experimental and unsupported, so is not currently included in fedora's xdg-utils packaging) If sage needs/uses xterm, then it probably ought to include a dependency for it.
On a similar, but unrelated note, I did see in /usr/bin/sage : export SAGE_BROWSER=firefox IMO, that would probably be better set to export SAGE_BROWSER=xdg-open so each user's desktop-preferred browser is used instead (assuming that SAGE_BROWSER refers to a web-browser)
It appears the default terminal to use is DE specific and configurable. Some distributions have a generic x-terminal-emulator or similarly named wrapper in /usr/bin. At least for kde, in en_US it should be to go to: System Settings -> Default Applications -> Default Component Then, select "Use Konsole as terminal application" The default value in the text entry there appears to be "xterm". About the hardcoded SAGE_BROWSER, I am still to find some time to debug it better on konqueror at least, and there is already at least one bug report about it. I hardcoded firefox because it works, and not so well in other browsers. I also noticed that the latest openjdk/icedtea-web update broke the jmol applet for f18, f19 and rawhide, so I also need to debug that to either provide a patch or an as good as possible description of the breakage (and I know the plugin applet breaks so easily I am kind of tired of debugging that for a long time, providing a patch just to see it break again in a few months).
I see sagemath.desktop includes: Terminal=true so, desktops are supposed to handle this already (i think) Reporter, what DE are you using (gnome, kde, mate, other)?
I am using Mate, and in 'Preferred Applications' ==> 'System' the 'Terminal Emulator' is set to 'MATE Terminal'. The problem remains, even with F19 fully up-to-date as of about 20 minutes ago. SageMath works fine when I install xterm.
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