title: ERROR conda.core.link:_execute(701): An error occured while updating conda packages
body: <p>I'm having trouble trying to update my base conda environment. Does anyone know how to resolve this issue?</p>
  <pre><code>conda update -n base --all
  </code></pre>
  <p>It returns:</p>
  <pre><code>Collecting package metadata (current_repodata.json): done
  Solving environment: \ 
  Warning: 2 possible package resolutions (only showing differing packages):
    - conda-forge/noarch::sphinx-3.5.3-pyhd8ed1ab_0, conda-forge/osx-64::docutils-0.17-py37hf985489_0
    - conda-forge/noarch::sphinx-3.5.4-pyh44b312d_0, conda-forge/osx-64::docutils-0.15.2-py37hf985489done
  
  ## Package Plan ##
  
    environment location: /Users/winkulvichit/miniconda3
  
  
  The following NEW packages will be INSTALLED:
  
    argon2-cffi        conda-forge/osx-64::argon2-cffi-20.1.0-py37hf967b71_2
    lcms2              conda-forge/osx-64::lcms2-2.12-h577c468_0
    libdeflate         conda-forge/osx-64::libdeflate-1.7-h35c211d_5
    olefile            conda-forge/noarch::olefile-0.46-pyh9f0ad1d_1
    openjpeg           conda-forge/osx-64::openjpeg-2.4.0-h6cbf5cd_0
    pillow             conda-forge/osx-64::pillow-8.1.2-py37hd4e48bc_1
    seaborn-base       conda-forge/noarch::seaborn-base-0.11.1-pyhd8ed1ab_1
  
  The following packages will be UPDATED:
  
    apscheduler                          3.6.3-py37hc8dfbb8_1 --&gt; 3.7.0-py37hf985489_0
    bzip2                                    1.0.8-h0b31af3_2 --&gt; 1.0.8-hc929b4f_4
    htslib                                              1.3-0 --&gt; 1.12-hc38c3fb_1
    jupyter            conda-forge/noarch::jupyter-1.0.0-py_2 --&gt; conda-forge/osx-64::jupyter-1.0.0-py37hf985489_6
    libllvm9                                 9.0.1-h7475705_1 --&gt; 9.0.1-h223d4b2_3
    matplotlib                                        3.2.1-0 --&gt; 3.4.1-py37hf985489_0
    matplotlib-base                      3.2.1-py37hddda452_0 --&gt; 3.4.1-py37hb018525_0
    notebook           conda-forge/osx-64::notebook-6.0.3-py~ --&gt; conda-forge/noarch::notebook-6.3.0-pyha770c72_1
    r-irkernel                              1.1-r40h6115d3f_1 --&gt; 1.1.1-r40h6115d3f_0
    samtools                                          1.3.1-0 --&gt; 1.12-hfcfc997_1
    scikit-learn                        0.23.1-py37hf5857e7_0 --&gt; 0.24.1-py37hbcf18d0_0
    seaborn                                       0.10.1-py_0 --&gt; 0.11.1-hd8ed1ab_1
    spyder-terminal    spyder-ide::spyder-terminal-0.3.1-py3~ --&gt; conda-forge::spyder-terminal-0.5.0-py37hf985489_2
  
  The following packages will be SUPERSEDED by a higher-priority channel:
  
    python.app                 pkgs/main::python.app-2-py37_9 --&gt; conda-forge::python.app-1.3-py37hf967b71_4
  
  The following packages will be DOWNGRADED:
  
    tzlocal                                  2.1-pyh9f0ad1d_0 --&gt; 2.0.0-py_0
  
  
  Proceed ([y]/n)? y
  
  Preparing transaction: done
  Verifying transaction: done
  Executing transaction: done
  ERROR conda.core.link:_execute(701): An error occurred while installing package 'conda-forge::python.app-1.3-py37hf967b71_4'.
  Rolling back transaction: done
  
  LinkError: post-link script failed for package conda-forge::python.app-1.3-py37hf967b71_4
  location of failed script: /Users/winkulvichit/miniconda3/bin/.python.app-post-link.sh
  ==&gt; script messages &lt;==
  &lt;None&gt;
  ==&gt; script output &lt;==
  stdout: 
  stderr: ln: ./lib: File exists
  
  return code: 1
  
  ()
  </code></pre>
  <p>I couldn't find any solutions on the internet. If there is any way to fix this issue without having to reinstall conda would be appreciated. Thank you!</p>