DeprecationWarning: 'onAfterSetupMiddleware' option is deprecated

[JackoPham]

I got a warning when npm start.
Please help me solve the problem.

(node:1681) [DEP_WEBPACK_DEV_SERVER_ON_AFTER_SETUP_MIDDLEWARE] DeprecationWarning: 'onAfterSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option.
(Use node --trace-deprecation ... to show where the warning was created)
(node:1681) [DEP_WEBPACK_DEV_SERVER_ON_BEFORE_SETUP_MIDDLEWARE] DeprecationWarning: 'onBeforeSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option.

[linzhipeng98]

#11860

[Cyebukayire]

I'm having the same warning too
Any solution to this?

[johnnychengchj123]

me too

I'm having the same warning too Any solution to this?

[imransilvake]

same issue

[iiaan]

i have the same problem

[yousefalkhatibDev]

I thought i was the only one. but let me ask something is this error has to do with the ERR_CONNECTION_REFUSED error?

[khizar-hayyat-72]

Same Error here.

Same error in docker container. Docker version is 20.10.12, base image is node:alpine

[gars150387]

I am getting the same error:

"(node:9112) [DEP_WEBPACK_DEV_SERVER_ON_AFTER_SETUP_MIDDLEWARE] DeprecationWarning: 'onAfterSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option.
(Use node --trace-deprecation ... to show where the warning was created)
(node:9112) [DEP_WEBPACK_DEV_SERVER_ON_BEFORE_SETUP_MIDDLEWARE] DeprecationWarning: 'onBeforeSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option."

[oxicot]

The same thing here after upgrade to ..... "react-scripts": "^5.0.0" (Node 16.*)

---

$ npm start

test@0.1.0 start
react-scripts start

(node:21944) [DEP_WEBPACK_DEV_SERVER_ON_AFTER_SETUP_MIDDLEWARE] DeprecationWarning: 'onAfterSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option.
(Use node --trace-deprecation ... to show where the warning was created)

(node:21944) [DEP_WEBPACK_DEV_SERVER_ON_BEFORE_SETUP_MIDDLEWARE] DeprecationWarning: 'onBeforeSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option.
Starting the development server...

Compiled successfully!

webpack 5.70.0 compiled successfully in 18347 ms

[nspool]

Is this a duplicate of #11860 ?

[gars150387]

This warning disappeared using the repair option in the node.js file. It worked for me

---

I got a warning when npm start. Please help me solve the problem.

(node:1681) [DEP_WEBPACK_DEV_SERVER_ON_AFTER_SETUP_MIDDLEWARE] DeprecationWarning: 'onAfterSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option. (Use node --trace-deprecation ... to show where the warning was created) (node:1681) [DEP_WEBPACK_DEV_SERVER_ON_BEFORE_SETUP_MIDDLEWARE] DeprecationWarning: 'onBeforeSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option.

[HaseebullahMemon]

i am facing node(8868) type of error. Please help me solve the problem
(node:8868) [DEP_WEBPACK_DEV_SERVER_ON_AFTER_SETUP_MIDDLEWARE]
DeprecationWarning: 'onAfterSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option.
(Use node --trace-deprecation ... to show where the warning was created)
(node:8868) [DEP_WEBPACK_DEV_SERVER_ON_BEFORE_SETUP_MIDDLEWARE] DeprecationWarning: 'onBeforeSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option.

[SohelTanbir]

I got also the same warning!
please any solution available ?
(node:11648) [DEP_WEBPACK_DEV_SERVER_ON_AFTER_SETUP_MIDDLEWARE] DeprecationWarning: 'onAfterSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option

[anveshiano]

I am facing the same issue