erro de channel

Professor estou utilizando Laravel v8.83.19 (PHP v7.4.19)

E na rota /create-post retorna ok certinho na tela mas quando inclui o aap.js na tela de view tive erro no console.

Comparei os arquivos que tenho com os do repositório git e aparentam estar iguais,

app.js:6194 Uncaught TypeError: Cannot read properties of undefined (reading 'channel')

    at Echo.channel (app.js:6194:29)

    at ./resources/js/Echo.js (app.js:2063:13)

    at __webpack_require__ (app.js:28007:42)

    at ./resources/js/bootstrap.js (app.js:2119:1)

    at __webpack_require__ (app.js:28007:42)

    at ./resources/js/app.js (app.js:2076:1)

    at __webpack_require__ (app.js:28007:42)

    at app.js:28160:64

    at __webpack_require__.O (app.js:28044:23)

    at app.js:28162:53

channel @ app.js:6194

./resources/js/Echo.js @ app.js:2063

__webpack_require__ @ app.js:28007

./resources/js/bootstrap.js @ app.js:2119

__webpack_require__ @ app.js:28007

./resources/js/app.js @ app.js:2076

__webpack_require__ @ app.js:28007

(anónimo) @ app.js:28160

__webpack_require__.O @ app.js:28044

(anónimo) @ app.js:28162

(anónimo) @ app.js:28164

index.js:1 Uncaught (in promise) {message: 'The message port closed before a response was received.'}

(anónimo) @ index.js:1

projeto.test/:1 Uncaught (in promise) {message: 'The message port closed before a response was received.'}

Como faço para resolver isso?