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]<javascript:>
> > 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 :)
>>
>>
>>
>
