[vue ssr]normalizeFile get undefined file

Version

2.6.6

Reproduction link

https://codepen.io/lkafai/pen/Erpgze

Steps to reproduce

package.json:

“vue”: “^2.5.22”, “vue-server-renderer”: “^2.6.6”

run command vue-cli-service build

What is expected?

success render

What is actually happening?

TypeError: Cannot read property ‘replace’ of undefined at normalizeFile (/node_modules/_vue-server-renderer@2.6.6@vue-server-renderer/build.dev.js:8998:27)

---

i open the file vue-ssr-client-manifest.json , and found that some id in modules got -1 index

  "modules": {
    "13323344": [
      13,
      14
    ],
    "0b0ba5ab": [
      3,
      15,
      -1,
      16
    ],

and the -1 index not found any file. so in vue-server-renderer/build.dev.js file,the normalizeFile get undefined , and throw out “Cannot read property ‘replace’ of undefined” i have no idea why there is -1 in modules , and file mapping fail, is this a configure problem? my vue.config.js is writed in codepen , sorry for my poor english

[ediaos]

i got same error when enable sourceMap . in vue-server-render/build.prod.js , getUsedAsyncFiles will throw undefind error.

enable js sourceMap , disable css sourceMap

server render error

enable js and css sourceMap

server render success

disable js and css sourceMap

server render success

[leekafai]

  css: {
    extract: true,
    sourceMap: false
  }

when i set sourceMap to true ,render success

  css: {
    extract: true,
    sourceMap: true
  }

looks like that no matter where you set in sourceMap,when you create manifest.json, it alway mapping xxx.css.map