Module not found for background image when build/generate with space in image name.

[暮雨]

I have some style in vue sfc like this

<style lang="scss">
.some-class {
	background-image: url("~assets/index/ico xxx.png"); // there is a space between ico and xxx
}
</style>

There is no problem in dev, but Module not found error in build and generate.

[暮雨]

submit in wrong repo and closed.