Last week I had a similar error, but I cannot remember the exact phrasing.
The reason was the the REPL, but Pkg.checkout("IJulia") fixed it.2014-04-11 15:13 GMT+02:00 Isaiah Norton <[email protected]>: > This error usually means that python can't find the julia executable. Try > running Pkg.build("IJulia") and see if there are any errors. If there are > no errors, then look in ~/.config/ipython/profile_julia/ipython_config.py. > The last line should be "c.KernelManager.kernel_cmd = ...". Does the Julia > binary referenced there actually exist? Can you shell out to it directly > from IPython? > > > On Fri, Apr 11, 2014 at 5:35 AM, Thomas Moore <[email protected]>wrote: > >> I've been trying to get IJulia to work on Ubuntu 12.04 with Julia Version >> 0.3.0-prerelease+2057. I installed ipython 2.0.0 using easy_install: >> >> easy_install ipython[all] >> >> >> and this allows me to run an ipython notebook from the terminal with: >> >> ipython notebook >> >> >> This all works fine. I then attempted to install IJulia with >> >> Pkg.add("IJulia") >> >> >> >> and this all seemed to work well. When I run >> >> ipython notebook --profile julia >> >> >> a notebook opens with the Julia logo at the top right. However, when I >> open a new notebook, the kernel appears permanently busy (I can write in >> markdown script and headers, but I can't execute any Julia code) and I get >> the following error message in the terminal: >> >> >> 2014-04-11 18:56:44.881 [NotebookApp] Creating new notebook in / >> 2014-04-11 18:56:44.884 [NotebookApp] Writing notebook-signing key to / >> home/thomas/.ipython/profile_julia/security/notebook_secret >> 2014-04-11 18:56:45.961 [NotebookApp] ERROR | Unhandled error in API >> request >> Traceback (most recent call last): >> File >> "/usr/local/lib/python2.7/dist-packages/IPython/html/base/handlers.py",line >> 286, in wrapper >> result = method(self, *args, **kwargs) >> File >> "/usr/local/lib/python2.7/dist-packages/IPython/html/services/sessions/handlers.py" >> , line 65, in post >> kernel_id = km.start_kernel(path=path) >> File >> "/usr/local/lib/python2.7/dist-packages/IPython/html/services/kernels/kernelmanager.py" >> , line 90, in start_kernel >> kernel_id = super(MappingKernelManager, self).start_kernel(**kwargs) >> File >> "/usr/local/lib/python2.7/dist-packages/IPython/kernel/multikernelmanager.py" >> , line 116, in start_kernel >> km.start_kernel(**kwargs) >> File "/usr/local/lib/python2.7/dist-packages/IPython/kernel/manager.py" >> , line 217, in start_kernel >> **kw) >> File "/usr/local/lib/python2.7/dist-packages/IPython/kernel/manager.py" >> , line 173, in _launch_kernel >> return launch_kernel(kernel_cmd, **kw) >> File >> "/usr/local/lib/python2.7/dist-packages/IPython/kernel/launcher.py",line >> 254, in launch_kernel >> stdin=_stdin, stdout=_stdout, stderr=_stderr, cwd=cwd, env=os.environ >> ) >> File "/usr/lib/python2.7/subprocess.py", line 679, in __init__ >> errread, errwrite) >> File "/usr/lib/python2.7/subprocess.py", line 1249, in _execute_child >> raise child_exception >> OSError: [Errno 2] No such file or directory >> ERROR:tornado.access:{ >> "Origin": "http://127.0.0.1:8998";, >> "Content-Length": "50", >> "Accept-Language": "en-GB,en-US;q=0.8,en;q=0.6", >> "Accept-Encoding": "gzip,deflate,sdch", >> "Connection": "keep-alive", >> "Accept": "application/json, text/javascript, */*; q=0.01", >> "User-Agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 >> (KHTML, like Gecko) Chrome/33.0.1750.152 Safari/537.36", >> "Host": "127.0.0.1:8998", >> "X-Requested-With": "XMLHttpRequest", >> "Referer": "http://127.0.0.1:8998/notebooks/Untitled16.ipynb";, >> "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8" >> } >> ERROR:tornado.access:500 POST /api/sessions (127.0.0.1) 20.67ms referer= >> http://127.0.0.1:8998/notebooks/Untitled16.ipynb >> 2014-04-11 19:20:45.994 [NotebookApp] Saving notebook at /Untitled16. >> ipynb >> >> >> >> >> If instead I run >> >> ipython console --profile julia >> >> >> I don't even get so far as anything opening at all: I just get the same >> error message. >> >> This error and others similar to it have appeared in a number of places, >> for example: >> >> https://github.com/JuliaLang/IJulia.jl/issues/61 >> https://groups.google.com/forum/#!msg/julia-users/MJrSqN1CcDs/SrbQOL2yMTkJ >> https://groups.google.com/forum/#!msg/julia-users/MhTP9T-j5FY/PP_Su47p8RoJ >> >> The reason for the error and suggested fixes vary considerably. I've >> tried deleting ~/.ipython/profile_julia and running Pkg.fixup("IJulia"). >> I've tried removing IJulia and then running Pkg.add("WinRPM") and then >> Pkg.add("IJulia"). So far the error message hasn't changed. >> >> Any help would be appreciated :) >> >> >> > -- Med venlig hilsen Andreas Noack Jensen
