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 :) > > >
