[DevTools Bug]: react-devtools not start up

[yuyang-ok]

Website or app

sorrry I don't know how to reproduce this.

Repro steps

npm install -g react-devtools

react-devtools

react-devtools not start up on ubuntu24 , nothing happen , no error message at all

How often does this bug happen?

Every time

DevTools package (automated)

No response

DevTools version (automated)

No response

Error message (automated)

No response

Error call stack (automated)

Error component stack (automated)

GitHub query string (automated)

[yuyang-ok]

[dwrBad]

I can confirm this on Ubuntu 24.04.1 LTS, also did a manual build to the same result.

[ParisPianist196]

Also experiencing this bug

[mdottavi]

Same issue here. After reinstalling to Ubuntu 24 npx react-devtools do not show up. No error messages. No logs (checking in npx log dir).

Is there any way to increase verbosity ? I tried both react-devtools@latest and [email protected]

Please let us know.

[zpotoloom]

This happens due to apparmor blocking unprivileged user namespace usage. apparmor="AUDIT" operation="userns_create" class="namespace" info="Userns create - transitioning profile" profile="unconfined" pid=16278 comm="electron" requested="userns_create" target="unprivileged_userns"

apparmor="DENIED" operation="capable" class="cap" profile="unprivileged_userns" pid=16280 comm="electron" capability=21 capname="sys_admin"

One workaround without changing apparmor settings is to disable electrons sandbox mode: react-devtools --no-sandbox