Uncaught TypeError: Cannot read properties of undefined (reading 'containedCount')

[Soulsuck24]

Type: Bug Report

• Try to follow the update procedure described in the README and try again before opening this issue.

Your Environment

• Version used:
  • Version v4.8.5 -> v4.9+
• Environment name and version:
  • Node.js version v22.9.0
  • npm version 11.1.0
  • Web browser Chrome 133.0.6943.142
• Operating system and version: Win 11
• Torrent client and version: rtorrent/0.9.8/0.13.8

Summary

When upgrading from v4.8.5 to any version newer I'm unable to load into the webui. The console in chrome shows the error Uncaught TypeError: Cannot read properties of undefined (reading 'containedCount') with a blank page. I've tried clearing cache and cookies with no change. Reverting to v4.8.5 restores normal usage.

Expected Behavior

Normal load into the webui

Possible Solution

Seems to be stemming from the additions in #518

[trim21]

Looks like the new Taxonomy is not backward compatible, I'll fix it when I have spare time.

flood/client/src/javascript/components/sidebar/LocationFilters.tsx

Line 10 in 257231e

if (location.children.length === 1 && location.containedCount === location.children[0].containedCount) {

For now, a workaround is to remove old config of flood and do a clean installation of flood v4.9+.

[Soulsuck24]

I did not think to check my config file. I removed it and the ui loaded properly.

Investigated a bit and tried re-adding lines from the old config and it seems that this line was causing the issue {"id":"UITagSelectorMode","data":null,"_id":"hCpP1RRpR8uJoM07"}

Don't know if it's the null not being handled properly or there's something else that I'm just missing as I don't know Node. It may also be different than you were thinking, not sure, but removing that line solved my issue if that helps. Will leave this open incase your solution was something different and let you close if it was, thanks.

[trim21]

I read the code and we did handle the case data it's null. not sure why this happens....

[trim21]

🤨 Can't findout why

[trim21]

I'll add source map in webpack output, hopefully get a more clearly stack trace in the future.