PyCharm调试器报错“Unable to display children:Attribute not found: value”求解决办法

Hey there, sorry to hear you're stuck with this frustrating debugger error! Since you've verified it's an IDE issue (not your code) and older PyCharm versions work fine, here are actionable fixes you can try without rolling back to an older release:

• Clear PyCharm's cache and indexes
  Corrupted cache is a common culprit for weird IDE glitches. Go to File > Invalidate Caches / Restart, then select Invalidate and Restart. This won't touch your code—it just resets PyCharm's cached data and reindexes your project, which often resolves debugger display issues.

• Disable non-essential plugins
  Third-party plugins can sometimes conflict with the built-in debugger. Head to File > Settings > Plugins, disable any plugins you don't absolutely need (especially ones installed recently), then restart PyCharm. Test the debugger again to see if the error goes away.

• Reset debugger configuration files
  If the debugger's config files got corrupted, you can reset them manually:

  1. Close PyCharm completely.
  2. Locate your PyCharm configuration directory:
     • Windows: C:\Users\<YourUsername>\.PyCharmCE2017.3
     • Mac: ~/Library/Preferences/PyCharmCE2017.3
     • Linux: ~/.PyCharmCE2017.3
  3. Delete the config/debugger folder inside this directory.
  4. Reopen PyCharm—it will automatically rebuild the default debugger configuration.

• Update to the latest minor version in the 2017.3 series
  JetBrains often patches bugs in minor updates. 2017.3.4 isn't the final release of that branch—version 2017.3.7 is available. Updating to this minor version will keep your familiar 2017.3 interface while fixing known issues like this debugger error.

• Switch to an alternative debugger in run configurations
  Try changing the debugger type for your project:

  1. Go to Run > Edit Configurations.
  2. Select your Python run/debug configuration.
  3. In the Configuration tab, look for the Debugger dropdown (under the Python interpreter section).
  4. Switch from Auto to PyDev Debugger or Legacy Debugger (if available), save the configuration, and test debugging again.

内容的提问来源于stack exchange，提问作者goWithSwagger