# Jupyter Notebook Kernel Failing

**URL:** <https://discourse.julialang.org/t/jupyter-notebook-kernel-failing/15434>\
**Category:** New to Julia\
**Tags:** jupyter\
**Created:** [September 24, 2018, 7:31pm UTC](https://discourse.julialang.org/t/jupyter-notebook-kernel-failing/15434 "2018-09-24T19:31:29Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![agirdhar](https://avatars.discourse-cdn.com/v4/letter/a/aca169/32.png) [@agirdhar](https://discourse.julialang.org/u/agirdhar)\
**Post date:** [September 24, 2018, 7:31pm UTC](https://discourse.julialang.org/t/jupyter-notebook-kernel-failing/15434/1 "2018-09-24T19:31:29Z")

</div>

First post here. I had previously installed Julia 1.0 using Anaconda, and configured IJulia to run in a Jupyter Notebook. For various reasons unbeknown, the kernel started repeatedly failing one day, so I decided to do a fresh install. I removed Julia and Anaconda, installed from the binaries this time, and then ran `Pkg.build("IJulia")`, which worked successfully. However, when I try to open up the notebook I was working on again, I get this message:

```julia
Traceback (most recent call last):
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/tornado/web.py", line 1592, in _execute
    result = yield result
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 1133, in run
    value = future.result()
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 1141, in run
    yielded = self.gen.throw(*exc_info)
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/notebook/services/sessions/handlers.py", line 73, in post
    type=mtype))
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 1133, in run
    value = future.result()
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 1141, in run
    yielded = self.gen.throw(*exc_info)
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/notebook/services/sessions/sessionmanager.py", line 79, in create_session
    kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 1133, in run
    value = future.result()
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 1141, in run
    yielded = self.gen.throw(*exc_info)
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/notebook/services/sessions/sessionmanager.py", line 92, in start_kernel_for_session
    self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 1133, in run
    value = future.result()
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 326, in wrapper
    yielded = next(result)
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/notebook/services/kernels/kernelmanager.py", line 160, in start_kernel
    super(MappingKernelManager, self).start_kernel(**kwargs)
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/jupyter_client/multikernelmanager.py", line 110, in start_kernel
    km.start_kernel(**kwargs)
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/jupyter_client/manager.py", line 259, in start_kernel
    **kw)
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/jupyter_client/manager.py", line 204, in _launch_kernel
    return launch_kernel(kernel_cmd, **kw)
  File "/home/agirdhar/miniconda3/lib/python3.7/site-packages/jupyter_client/launcher.py", line 128, in launch_kernel
    proc = Popen(cmd, **kwargs)
  File "/home/agirdhar/miniconda3/lib/python3.7/subprocess.py", line 756, in __init__
    restore_signals, start_new_session)
  File "/home/agirdhar/miniconda3/lib/python3.7/subprocess.py", line 1499, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: '/home/agirdhar/anaconda3/bin/julia': '/home/agirdhar/anaconda3/bin/julia'

```

Indeed, the file at the bottom does not exist - there’s no anaconda3 directory because I don’t have it installed. Any ideas of what’s going on?

---

<div class="post-metadata">

**Author:** ![Ajaychat3](https://avatars.discourse-cdn.com/v4/letter/a/ecd19e/32.png) [@Ajaychat3](https://discourse.julialang.org/u/Ajaychat3)\
**Post date:** [September 25, 2018, 2:58am UTC](https://discourse.julialang.org/t/jupyter-notebook-kernel-failing/15434/2 "2018-09-25T02:58:32Z")

</div>

See this post. It might help you.

> [@Is IJulia meant to be working with Julia v1.0 yet?](https://discourse.julialang.org/t/is-ijulia-meant-to-be-working-with-julia-v1-0-yet/13257/15):
>
> Should hopefully be working now once you do a Pkg.update.

---

<div class="post-metadata">

**Author:** ![tkf](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tkf/32/17635_2.png) [@tkf](https://discourse.julialang.org/u/tkf)\
**Post date:** [September 25, 2018, 3:09am UTC](https://discourse.julialang.org/t/jupyter-notebook-kernel-failing/15434/3 "2018-09-25T03:09:53Z")

</div>

> [@agirdhar](#):
>
> I removed Julia and Anaconda

…but probably the old configuration persists in `~/.julia`. This may help:

```julia
julia> ENV["JUPYTER"] = ""
julia> using Pkg
julia> Pkg.build("IJulia")

```