Hi Alasdair See: https://groups.google.com/forum/#!topic/fricas-devel/ltrhAkzrIYs
There was a design change in 0MQ, i.e jupy versions > 4.0 won't work without a new pzmq. The steps below provide a temporary fix. Kurt ====== ... Therefore, if you want to fix it yourself, the following steps were necessary: 1. pip install -U jupyter-client (undoing the downgrade) 2. clear the sbcl cache for "pzmq": ????=to complete rm -r ~/.cache/common-lisp/sbcl-1.3.0-linux-x64/???/fricas_jupyter/quicklisp/dists/quicklisp/software/pzmq-20150608-git/ 3. cd ????/fricas_jupyter/quicklisp/dists/quicklisp/software 4. rm -r pzmq-20150608-git 5. git clone https://github.com/orivej/pzmq.git 6. mv pzmq pzmq-20150608-git #cheating ;) 7. cd ????/fricas_jupyter 8. ./install.sh #recompile kernel I'll update the git repo as soon as the new version of "pzmq" is released on QL, then you could pull the changes via git. Kurt >>> from http://stackoverflow.com/questions/34093656/jupyter-and-common-lisp/37107166#37107166 This issue is caused by a change in the size of the message structure, zmq_msg_t, in 0MQ version 4.1.x to 64 bytes from a size of 32 bytes in version 4.0.x. ====== Am 17.06.2016 um 16:18 schrieb Alasdair McAndrew: > I have installed fricas (compiling from source) and also jupyter, then I > installed fricas_jupyter following the instructions at > https://github.com/nilqed/fricas_jupyter > > But I can't get it all to work. I can open up a jupyter notebook, then > choose a new fricas session, but when I attempt to execute a command, the > terminal in which I entered "jupyter notebook" fills up with an unending > repetition of this error: > > debugger invoked on a TYPE-ERROR in thread > #<THREAD "main thread" RUNNING {1004EB61B3}>: > The value > NIL > is not of type > (OR (AND SYMBOL (NOT NULL)) RESTART) > > Type HELP for debugger help, or (SB-EXT:EXIT) to exit from SBCL. > > restarts (invokable by number or by possibly-abbreviated name): > 0: [ABORT] Reduce debugger level (to debug level 1). > > (INVOKE-RESTART NIL) [more,optional] > 0[2] > 0] > > Can anybody advise me what's going on here, and how I can get it all > working? > -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to fricas-devel+unsubscr...@googlegroups.com. To post to this group, send email to fricas-devel@googlegroups.com. Visit this group at https://groups.google.com/group/fricas-devel. For more options, visit https://groups.google.com/d/optout.