我对docker完全陌生，我需要在docker环境中运行代码。
我在构建 Dockerfile 时遇到错误：
我通过 hyper-V 运行 Ubuntu 20.04，当我构建 Dockerfile 时，我收到以下消息：
Step 4/20 : RUN curl -o ~/miniconda.sh -O https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh && chmod +x ~/miniconda.sh && ~/miniconda.sh -b -p /opt/conda && rm ~/miniconda.sh && /opt/conda/bin/conda install numpy pyyaml scipy ipython mkl && /opt/conda/bin/conda install -c soumith magma-cuda90 && /opt/conda/bin/conda clean -ya <br />
---> Running in 9758f4fe60a4 <br />
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 …我使用 julia 1.4，并运行以下代码：
using PyCall
using JLD
using ArgParse
using Pandas
@pyimport networkx as nx
@pyimport scipy.sparse.csgraph as csg
@pyimport numpy as np
unshift!(PyVector(pyimport("sys")["path"]), "")
# unshift!(PyVector(pyimport("sys")["path"]), "..")
unshift!(PyVector(pyimport("sys")["path"]), "combinatorial")
@pyimport utils.load_graph as lg
@pyimport utils.distortions as dis
@pyimport graph_util as gu
....
当我运行此代码时，出现以下错误：
ERROR: LoadError: UndefVarError: unshift! not defined
Stacktrace:
[1] top-level scope at /root/hyperbolics/combinatorial/comb.jl:9
[2] include(::Module, ::String) at ./Base.jl:377
[3] exec_options(::Base.JLOptions) at ./client.jl:288
[4] _start() at ./client.jl:484
in expression starting at /root/hyperbolics/combinatorial/comb.jl:9
当我搜索文件时，unshift！是 julia 1.4 中的现有函数，所以我不明白为什么会发生此错误。我是朱莉娅的新手，请帮忙。