Failed to compile because of "Module parse failed: Unexpected token"

[Little-Frog-233]

I use vue-cli to start my project and install vue-flow, but when i start the project, it dosen't work and i receive this error:

./node_modules/@vue-flow/core/dist/vue-flow-core.mjs 78:82
Module parse failed: Unexpected token (78:82)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
|     if (!Sr(v))
|       return n((p) => p === v, g);
>     const { flush: x = "sync", deep: h = !1, timeout: d, throwOnTimeout: w } = g ?? {};
|     let y = null;
|     const V = [new Promise((p) => {

i don't know how to fix it, is there anybody can help?

[bcakmakoglu]

You might want to check this discussion: #851