1.7.0 wont prod build: cannot read property line of undefined

Small dependencies problem I guess.

Versions

Angular CLI: 1.7.0-beta.1
Node: 8.9.4
OS: darwin x64
Angular: 5.2.0
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

@angular/cli: 1.7.0-beta.1
@angular-devkit/build-optimizer: 0.0.41
@angular-devkit/core: 0.0.28
@angular-devkit/schematics: 0.0.51
@ngtools/json-schema: 1.1.0
@ngtools/webpack: 1.10.0-beta.1
@schematics/angular: 0.1.16
typescript: 2.5.3
webpack-bundle-analyzer: 2.9.2
webpack: 3.10.0

Repro steps

• Fresh project using CLI v1.7.0-beta.1
• ng build --prod

Observed behavior

The code won’t compile at all. An error in modules.

/project/node_modules/clean-css/lib/reader/input-source-map-tracker.js:37
  if (originalPosition.line === null && line > 1 && selectorFallbacks > 0) {
                       ^

TypeError: Cannot read property 'line' of undefined
    at originalPositionFor (/project/node_modules/clean-css/lib/reader/input-source-map-tracker.js:37:24)
    at originalMetadata (/project/node_modules/clean-css/lib/tokenizer/tokenize.js:486:43)
    at intoTokens (/project/node_modules/clean-css/lib/tokenizer/tokenize.js:435:68)
    at tokenize (/project/node_modules/clean-css/lib/tokenizer/tokenize.js:74:10)
    at fromStyles (/project/node_modules/clean-css/lib/reader/read-sources.js:147:12)
    at fromString (/project/node_modules/clean-css/lib/reader/read-sources.js:48:10)
    at doReadSources (/project/node_modules/clean-css/lib/reader/read-sources.js:33:12)
    at readSources (/project/node_modules/clean-css/lib/reader/read-sources.js:24:10)
    at /project/node_modules/clean-css/lib/clean.js:99:12
    at _combinedTickCallback (internal/process/next_tick.js:131:7)
    at process._tickCallback (internal/process/next_tick.js:180:9)

Mention any other details that might be useful

Tried to delete package-lock.json, delete node_modules, fresh reinstall. Same problem. Also tried yarn with no success.

Reverting to previous version make the error disappear.

[filipesilva]

We have updated our dependency to clean-css@4.1.11 meanwhile, but for those still affected you can do this:

npm install clean-css@4.1.11
npm uninstall clean-css
npm ls clean-css

Installing and uninstalling should force the package manager to use the newer one and dedupe it. This is generally useful when you want to force your project to use a certain version of an indirect dependency, and better than just deleting your node_modules and package lock.

[porfidev]

@jamieathans how do you lint this??

I have same problem with materialize-css (using dist/css), on ng build

92% chunk asset optimization/Users/elporfirio/Projects/temu-fidelizacion-cms-nodejs/source/node_modules/clean-css/lib/reader/input-source-map-tracker.js:37
 if (originalPosition.line === null && line > 1 && selectorFallbacks > 0) {
                     ^

TypeError: Cannot read property 'line' of undefined
   at originalPositionFor (/Users/elporfirio/Projects/temu-fidelizacion-cms-nodejs/source/node_modules/clean-css/lib/reader/input-source-map-tracker.js:37:23)
   at originalMetadata (/Users/elporfirio/Projects/temu-fidelizacion-cms-nodejs/source/node_modules/clean-css/lib/tokenizer/tokenize.js:486:43)
   at intoTokens (/Users/elporfirio/Projects/temu-fidelizacion-cms-nodejs/source/node_modules/clean-css/lib/tokenizer/tokenize.js:435:68)
   at tokenize (/Users/elporfirio/Projects/temu-fidelizacion-cms-nodejs/source/node_modules/clean-css/lib/tokenizer/tokenize.js:74:10)
   at fromStyles (/Users/elporfirio/Projects/temu-fidelizacion-cms-nodejs/source/node_modules/clean-css/lib/reader/read-sources.js:147:12)
   at fromString (/Users/elporfirio/Projects/temu-fidelizacion-cms-nodejs/source/node_modules/clean-css/lib/reader/read-sources.js:48:10)
   at doReadSources (/Users/elporfirio/Projects/temu-fidelizacion-cms-nodejs/source/node_modules/clean-css/lib/reader/read-sources.js:33:12)
   at readSources (/Users/elporfirio/Projects/temu-fidelizacion-cms-nodejs/source/node_modules/clean-css/lib/reader/read-sources.js:24:10)
   at /Users/elporfirio/Projects/temu-fidelizacion-cms-nodejs/source/node_modules/clean-css/lib/clean.js:99:12
   at _combinedTickCallback (internal/process/next_tick.js:73:7)
   at process._tickCallback (internal/process/next_tick.js:104:9)