If anyone is still listening, I recently faced a similar problem likely
caused by trying to install IHaskell (big mistake). And, yes,
Pkg.build("IJulia") seemed to do the trick.
On Friday, April 11, 2014 10:12:57 AM UTC-4, Isaiah wrote:
>
> 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]
> <javascript:>> 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 :)
>>>>
>>>>
>>>>
>>>
>
