Could you check to see if this is corrected automatically by running
Pkg.build("IJulia")? If not, we should figure out why.On Fri, Apr 11, 2014 at 9:57 AM, Thomas Moore <[email protected]> wrote: > This looks to have solved the problem nicely! When I looked at the last > line of ~/.ipython/profile_julia/ipython_config.py it was: > > c.KernelManager.kernel_cmd = ["/home/thomas/julia/usr/bin/julia", "-F", > "/home/thomas/.julia/IJulia/src/kernel.jl", "{connection_file}"] > > However there was no julia executable in my ~/julia/usr/bin file (it's > just in ~/julia), and the notebook works if I replace this line with: > > c.KernelManager.kernel_cmd = ["/home/thomas/julia/julia", "-F", > "/home/thomas/.julia/IJulia/src/kernel.jl", "{connection_file}"] > > Thanks for you help! > > > > On Friday, 11 April 2014 23:13:52 UTC+10, Isaiah wrote: > >> 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 :) >>> >>> >>> >>
