Cannot read property 'compile' of undefined when running ./bin/webpack-dev-server

[Ankainnn]

ruby 2.3.4
rails 5.1.4
node 8.9.4

I get next error when trying to run ./bin/webpack-dev-server

/home/project/node_modules/webpack-dev-server/bin/webpack-dev-server.js:405
    throw e;
    ^

TypeError: Cannot read property 'compile' of undefined
    at addCompilerHooks (/home/project/node_modules/webpack-dev-server/lib/Server.js:71:16)
    at new Server (/home/project/node_modules/webpack-dev-server/lib/Server.js:81:5)
    at startDevServer (/home/project/node_modules/webpack-dev-server/bin/webpack-dev-server.js:398:14)
    at processOptions (/home/project/node_modules/webpack-dev-server/bin/webpack-dev-server.js:361:5)
    at Object.<anonymous> /home/project/node_modules/webpack-dev-server/bin/webpack-dev-server.js:504:1)
    at Module._compile (module.js:662:30)
    at Object.Module._extensions..js (module.js:673:10)
    at Module.load (module.js:575:32)
    at tryModuleLoad (module.js:515:12)
    at Function.Module._load (module.js:507:3)

Does anyone faced with the same error?

[Morganjackson]

I'm seeing the same thing with:

Ruby: 2.5.0
Rails: 5.2.0.rc1
Node: v8.9.4

[Terit]

I was having the same issue with:
Ruby: 2.4.1
Rails: 5.1.2
Node: 8.9.4

I was following the Readme instructions to upgrade(yarn upgrade webpack-dev-server --latest), however this installed webpack-dev-server v3.1.0. When I downgraded to v2.11.1 (yarn upgrade webpack-dev-server@^2.11.1) my dev server worked again!

[freestylebit]

I can confirm. Sticking with 2.11.1 works for the interim.

[smgilchrist]

Thanks, Terit. I was running into the same issue and that fixed it.
Rails 5.2.0.rc1
Node 9.6.1

[mashdots]

Ruby: 2.3.3
Rails: 5.1.5
Node: 6.11.5

Downgrading to v2.11.1 did the trick! Thank you!

Node: 9.6.1
Rails: 5.1.5
Ruby: 2.5.0

Downgrading fixed the issue for me too.
Thank you

[travisdmathis]

Ditto, downgrading solved the problem. Thanks.

[roberttravispierce]

I experienced the same. Thank you for this solution.

[pspgbhu]

I met the same issue, and downgrading webpack-dev-server to 2.11.1 fixed it.
Thanks!

[gauravtiwari]

Thanks everyone. We will update Webpacker to use webpack 4.0 soon - in meantime please use the supported dev server version.

[nodox]

Had the same issue. @Terit solution worked for me.

[suhomlineugene]

Had this issue too/ @Terit solution helps me