Jupyter Notebook中Julia 1.8.2内核启动失败求助

问题描述 #

在Anaconda中单独创建Julia环境后，从base环境启动Jupyter Notebook并尝试创建Julia 1.8.2内核时，内核反复重启失败。多次通过Julia REPL安装IJulia包均出现预编译错误，终端提示找不到IJulia包路径，但Julia控制台执行Pkg.status()显示IJulia v1.23.3已安装。

终端错误输出 #

(base) user@Ideapad-320-14IKB:~$ jupyter notebook
[I 2022-10-22 22:38:19.300 LabApp] JupyterLab extension loaded from /home/user/anaconda3/lib/python3.9/site-packages/jupyterlab
[I 2022-10-22 22:38:19.300 LabApp] JupyterLab application directory is /home/user/anaconda3/share/jupyter/lab
[I 22:38:19.304 NotebookApp] Serving notebooks from local directory: /home/user
[I 22:38:19.304 NotebookApp] Jupyter Notebook 6.4.12 is running at:
[I 22:38:19.304 NotebookApp] http://localhost:8888/?token=e67639f228570093a6050632d9de6e98870f034e2923bfb5
[I 22:38:19.304 NotebookApp]  or http://127.0.0.1:8888/?token=e67639f228570093a6050632d9de6e98870f034e2923bfb5
[I 22:38:19.304 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 22:38:19.355 NotebookApp] 
    
    To access the notebook, open this file in a browser:
        file:///home/user/.local/share/jupyter/runtime/nbserver-27914-open.html
    Or copy and paste one of these URLs:
        http://localhost:8888/?token=e67639f228570093a6050632d9de6e98870f034e2923bfb5
     or http://127.0.0.1:8888/?token=e67639f228570093a6050632d9de6e98870f034e2923bfb5
[I 22:38:57.111 NotebookApp] New terminal with automatic name: 1
TermSocket.open: 1
TermSocket.open: Opened 1
[I 22:40:23.823 NotebookApp] Creating new notebook in 
[I 22:40:25.845 NotebookApp] Kernel started: c0c716fc-b629-46d7-aa29-44e1cb91c0fc, name: julia-1.8
ERROR: LoadError: ArgumentError: Package IJulia not found in current path.
- Run `import Pkg; Pkg.add("IJulia")` to install the IJulia package.
Stacktrace:
 [1] macro expansion
   @ ./loading.jl:1163 [inlined]
 [2] macro expansion
   @ ./lock.jl:223 [inlined]
 [3] require(into::Module, mod::Symbol)
   @ Base ./loading.jl:1144
in expression starting at /home/user/anaconda3/envs/julialang/share/julia/packages/IJulia/AQu2H/src/kernel.jl:1
[I 22:40:28.835 NotebookApp] KernelRestarter: restarting kernel (1/5), new random ports
ERROR: LoadError: ArgumentError: Package IJulia not found in current path.
- Run `import Pkg; Pkg.add("IJulia")` to install the IJulia package.
Stacktrace:
 [1] macro expansion
   @ ./loading.jl:1163 [inlined]
 [2] macro expansion
   @ ./lock.jl:223 [inlined]
 [3] require(into::Module, mod::Symbol)
   @ Base ./loading.jl:1144
in expression starting at /home/user/anaconda3/envs/julialang/share/julia/packages/IJulia/AQu2H/src/kernel.jl:1
[I 22:40:31.874 NotebookApp] KernelRestarter: restarting kernel (2/5), new random ports
ERROR: LoadError: ArgumentError: Package IJulia not found in current path.
- Run `import Pkg; Pkg.add("IJulia")` to install the IJulia package.
Stacktrace:
 [1] macro expansion
   @ ./loading.jl:1163 [inlined]
 [2] macro expansion
   @ ./lock.jl:223 [inlined]
 [3] require(into::Module, mod::Symbol)
   @ Base ./loading.jl:1144
in expression starting at /home/user/anaconda3/envs/julialang/share/julia/packages/IJulia/AQu2H/src/kernel.jl:1
[I 22:40:34.909 NotebookApp] KernelRestarter: restarting kernel (3/5), new random ports
ERROR: LoadError: ArgumentError: Package IJulia not found in current path.
- Run `import Pkg; Pkg.add("IJulia")` to install the IJulia package.
Stacktrace:
 [1] macro expansion
   @ ./loading.jl:1163 [inlined]
 [2] macro expansion
   @ ./lock.jl:223 [inlined]
 [3] require(into::Module, mod::Symbol)
   @ Base ./loading.jl:1144
in expression starting at /home/user/anaconda3/envs/julialang/share/julia/packages/IJulia/AQu2H/src/kernel.jl:1
[I 22:40:37.945 NotebookApp] KernelRestarter: restarting kernel (4/5), new random ports
ERROR: LoadError: ArgumentError: Package IJulia not found in current path.
- Run `import Pkg; Pkg.add("IJulia")` to install the IJulia package.
Stacktrace:
 [1] macro expansion
   @ ./loading.jl:1163 [inlined]
 [2] macro expansion
   @ ./lock.jl:223 [inlined]
 [3] require(into::Module, mod::Symbol)
   @ Base ./loading.jl:1144
in expression starting at /home/user/anaconda3/envs/julialang/share/julia/packages/IJulia/AQu2H/src/kernel.jl:1
[I 22:40:40.983 NotebookApp] KernelRestarter: restarting kernel (5/5), new random ports
Websocket closed
ERROR: LoadError: ArgumentError: Package IJulia not found in current path.
- Run `import Pkg; Pkg.add("IJulia")` to install the IJulia package.
Stacktrace:
 [1] macro expansion
   @ ./loading.jl:1163 [inlined]
 [2] macro expansion
   @ ./lock.jl:223 [inlined]
 [3] require(into::Module, mod::Symbol)
   @ Base ./loading.jl:1144
in expression starting at /home/user/anaconda3/envs/julialang/share/julia/packages/IJulia/AQu2H/src/kernel.jl:1
[W 22:40:44.021 NotebookApp] KernelRestarter: restart failed
[W 22:40:44.022 NotebookApp] Kernel c0c716fc-b629-46d7-aa29-44e1cb91c0fc died, removing from map.
[W 22:40:46.522 NotebookApp] Forbidden
[W 22:40:46.522 NotebookApp] 403 GET /api/contents/Untitled3.ipynb?content=0&_=1666456825272 (127.0.0.1) 1.370000ms referer=http://localhost:8888/notebooks/Untitled3.ipynb?kernel_name=julia-1.8
[W 22:40:48.314 NotebookApp] Forbidden
[W 22:40:48.314 NotebookApp] 403 GET /api/sessions?_=1666456701944 (127.0.0.1) 0.990000ms referer=http://localhost:8888/tree
[W 22:40:48.316 NotebookApp] Forbidden
[W 22:40:48.316 NotebookApp] 403 GET /api/terminals?_=1666456701945 (127.0.0.1) 1.200000ms referer=http://localhost:8888/tree
[W 22:40:49.820 NotebookApp] 403 POST /api/shutdown (127.0.0.1) 11.230000ms referer=http://localhost:8888/tree
^C[I 22:41:09.376 NotebookApp] interrupted
Serving notebooks from local directory: /home/user
0 active kernels
Jupyter Notebook 6.4.12 is running at:
http://localhost:8888/?token=e67639f228570093a6050632d9de6e98870f034e2923bfb5
 or http://127.0.0.1:8888/?token=e67639f228570093a6050632d9de6e98870f034e2923bfb5
Shutdown this notebook server (y/[n])? ^C[C 22:41:09.614 NotebookApp] received signal 2, stopping
[I 22:41:09.615 NotebookApp] Shutting down 0 kernels
[I 22:41:09.616 NotebookApp] Shutting down 1 terminal
[I 22:41:09.635 NotebookApp] EOF on FD 14; stopping reading
[I 22:41:09.736 NotebookApp] Terminal 1 closed

Julia控制台输出 #

julia> versioninfo(); using Pkg; Pkg.status()
Julia Version 1.8.2
Platform Info:
  OS: Linux (x86_64-conda-linux-gnu)
  CPU: 4 × Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-13.0.1 (ORCJIT, skylake)
  Threads: 1 on 4 virtual cores
Environment:
  JULIA_CONDAPKG_BACKEND_BACKUP = 
  JULIA_CONDAPKG_BACKEND = System
  JULIA_LOAD_PATH = @:@julia:@stdlib
  JULIA_LOAD_PATH_BACKUP = 
  JULIA_DEPOT_PATH_BACKUP = 
  JULIA_PROJECT_BACKUP = 
  JULIA_CONDAPKG_EXE = /home/user/anaconda3/bin/conda
  JULIA_SSL_CA_ROOTS_PATH = /home/user/anaconda3/envs/julia/ssl/cacert.pem
  JULIA_DEPOT_PATH = /home/user/anaconda3/envs/julia/share/julia:
  JULIA_PROJECT = @julia
  JULIA_SSL_CA_ROOTS_PATH_BACKUP = 
  JULIA_CONDAPKG_EXE_BACKUP = 
Status `~/anaconda3/envs/julia/share/julia/environments/julia/Project.toml`
  [7073ff75] IJulia v1.23.3

解决方案 #

• 激活Julia环境后启动Jupyter：直接从base环境启动Jupyter会导致无法找到Julia环境中的IJulia包，需先激活Anaconda的Julia环境：

  conda activate julia
  jupyter notebook
  

• 重新构建IJulia包：在激活的Julia环境中打开REPL，执行以下命令重新生成内核配置，确保路径正确：

  using Pkg
  Pkg.build("IJulia")
  

• 清理旧内核配置：如果存在残留的错误内核配置，先删除再重新生成：

  rm -rf ~/.local/share/jupyter/kernels/julia-1.8
  

  之后回到Julia REPL执行Pkg.build("IJulia")重新注册内核。
• 验证环境变量一致性：激活Julia环境后，检查环境变量是否和Julia控制台一致：

  echo $JULIA_LOAD_PATH
  

  需确保输出与Julia控制台中JULIA_LOAD_PATH = @:@julia:@stdlib一致。

内容的提问来源于stack exchange，提问作者Ayan Paul