昨天用conda update --all升级了一下，升级完就关机了，今天想打开就出问题了
初学者不太懂，求大神帮助

报错如下：
(base) new@new-PC:~$  anaconda-navigator
Traceback (most recent call last):
  File "/home/new/anaconda3/lib/python3.7/site-packages/anaconda_navigator/widgets/main_window.py", line 541, in setup
    self.post_setup(conda_data=conda_data)
  File "/home/new/anaconda3/lib/python3.7/site-packages/anaconda_navigator/widgets/main_window.py", line 578, in post_setup
    self.tab_home.setup(conda_data)
  File "/home/new/anaconda3/lib/python3.7/site-packages/anaconda_navigator/widgets/tabs/home.py", line 169, in setup
    self.set_applications(applications, packages)
  File "/home/new/anaconda3/lib/python3.7/site-packages/anaconda_navigator/widgets/tabs/home.py", line 204, in set_applications
    apps = self.api.process_apps(applications, prefix=self.current_prefix)
  File "/home/new/anaconda3/lib/python3.7/site-packages/anaconda_navigator/api/anaconda_api.py", line 848, in process_apps
    app = app(config=self.config, process_api=self._process_api, conda_api=self._conda_api)
  File "/home/new/anaconda3/lib/python3.7/site-packages/anaconda_navigator/api/external_apps/vscode.py", line 48, in __init__
    **kwargs
  File "/home/new/anaconda3/lib/python3.7/site-packages/anaconda_navigator/api/external_apps/base.py", line 43, in __init__
    self.init()
  File "/home/new/anaconda3/lib/python3.7/site-packages/anaconda_navigator/api/external_apps/base.py", line 60, in init
    SUBDIR, INST_EXT, INST_DIR = self._find_linux_install_dir()
  File "/home/new/anaconda3/lib/python3.7/site-packages/anaconda_navigator/api/external_apps/vscode.py", line 168, in _find_linux_install_dir
    if DISTRO_NAME in ['ubuntu', 'debian']:
UnboundLocalError: local variable 'DISTRO_NAME' referenced before assignment
2020-03-03 13:22:57,609 - ERROR client_api._get_api_info:602
HTTPSConnectionPool(host='api.anaconda.org', port=443): Read timed out. (read timeout=6)