when i start yarn build:dev dev it takes too much time and it show like :[11:50:41] /home/shubham/Desktop/metamask-extension/dist/opera/background-6.js reloaded.

when i start my yarn build:dev dev it takes too much time even my project is not started. it only show :
: scripts:core:dev:disable-console: Bundle start: "disable-console"
scripts:core:dev:standardEntryPoints: Bundle start: "primary"
scripts:core:dev:contentscript: Bundle start: "inpage"
scripts:core:dev:sentry: Bundle start: "sentry-install"
scripts:core:dev:phishing-detect: Bundle start: "phishing-detect"
scripts:core:dev:disable-console: Bundle end: "disable-console"
scripts:core:dev:contentscript: Bundle end: "inpage"
scripts:core:dev:contentscript: Bundle start: "contentscript"
scripts:core:dev:sentry: Bundle end: "sentry-install"
scripts:core:dev:contentscript: Bundle end: "contentscript"
scripts:core:dev:phishing-detect: Bundle end: "phishing-detect"

and
[11:50:41] /home/shubham/Desktop/metamask-extension/dist/brave/background-6.js reloaded.
[11:50:41] /home/shubham/Desktop/metamask-extension/dist/opera/background-6.js reloaded.
how to solve this isssue .I am Stuck with this error. Please Help Me Out.

Start by reproducing the reported `yarn build:dev dev` behavior and review the Bundle start/end and background reload output shown in the issue. Determine whether the development build completes and which step delays it; done means identifying a reproducible cause and confirming that development builds finish normally.

Written by the indexing model from the issue text.