Index html generation failed. property missing ':'

[kemsky]

🐞 Bug report

Command (mark with an x)

• new
• build
• serve
• test
• e2e
• generate
• add
• update
• lint
• extract-i18n
• run
• config
• help
• version
• doc

Is this a regression?

Yes

Yes, the previous version in which this bug was not present was: ^11.0.0

Description

Build fails, the error message is misleading:

√ Browser application bundle generation complete.
√ Copying assets complete.
× Index html generation failed.
undefined:1:1234: property missing ':'

🔬 Minimal Reproduction

https://github.com/kemsky/angular-cli-bug

This CSS breaks the build:

/**
This document validates as CSS level 3 + SVG !
**/
.tox-rtc-remote-image {
  background: url("data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2236%22%20height%3D%2212%22%20viewBox%3D%220%200%2036%2012%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%3Ccircle%20cx%3D%226%22%20cy%3D%226%22%20r%3D%223%22%20fill%3D%22rgba(0%2C%200%2C%200%2C%20.2)%22%3E%0A%20%20%20%20%3Canimate%20attributeName%3D%22r%22%20values%3D%223%3B5%3B3%22%20calcMode%3D%22linear%22%20dur%3D%221s%22%20repeatCount%3D%22indefinite%22%20%2F%3E%0A%20%20%3C%2Fcircle%3E%0A%20%20%3Ccircle%20cx%3D%2218%22%20cy%3D%226%22%20r%3D%223%22%20fill%3D%22rgba(0%2C%200%2C%200%2C%20.2)%22%3E%0A%20%20%20%20%3Canimate%20attributeName%3D%22r%22%20values%3D%223%3B5%3B3%22%20calcMode%3D%22linear%22%20begin%3D%22.33s%22%20dur%3D%221s%22%20repeatCount%3D%22indefinite%22%20%2F%3E%0A%20%20%3C%2Fcircle%3E%0A%20%20%3Ccircle%20cx%3D%2230%22%20cy%3D%226%22%20r%3D%223%22%20fill%3D%22rgba(0%2C%200%2C%200%2C%20.2)%22%3E%0A%20%20%20%20%3Canimate%20attributeName%3D%22r%22%20values%3D%223%3B5%3B3%22%20calcMode%3D%22linear%22%20begin%3D%22.66s%22%20dur%3D%221s%22%20repeatCount%3D%22indefinite%22%20%2F%3E%0A%20%20%3C%2Fcircle%3E%0A%3C%2Fsvg%3E%0A");
}

.mce-spellchecker-word {
  background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D'4'%20height%3D'4'%20xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg'%3E%3Cpath%20stroke%3D'%23ff0000'%20fill%3D'none'%20stroke-linecap%3D'round'%20stroke-opacity%3D'.75'%20d%3D'M0%203L2%201%204%203'%2F%3E%3C%2Fsvg%3E%0A");
}

🔥 Exception or Error

× Index html generation failed.
undefined:1:1234: property missing ':'

🌍 Your Environment

Angular CLI: 12.0.0
Node: 14.15.3
Package Manager: npm 6.14.9
OS: win32 x64

Angular: 12.0.0
... animations, cli, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1200.0
@angular-devkit/build-angular   12.0.0
@angular-devkit/core            12.0.0
@angular-devkit/schematics      12.0.0
@schematics/angular             12.0.0
rxjs                            6.6.7
typescript                      4.2.4

[kkachniarz220]

I also started getting this error after updating to version 12

[alan-agius4]

This appears to be an issue in CSS package.

const css = require('css');

const cssContent = `
.tox-rtc-remote-image {background:url("data:image/svg+xml;charset=UTF-8,%3Csvg%2width%3D%2236%22%20height%3D%2212%22%20viewBox%3D%220%200%2036%2012%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%3Ccircle%20cx%3D%226%22%20cy%3D%226%22%20r%3D%223%22%20fill%3D%22rgba(0%2C%200%2C%200%2C%20.2)%22%3E%0A%20%20%20%20%3Canimate%20attributeName%3D%22r%22%20values%3D%223%3B5%3B3%22%20calcMode%3D%22linear%22%20dur%3D%221s%22%20repeatCount%3D%22indefinite%22%20%2F%3E%0A%20%20%3C%2Fcircle%3E%0A%20%20%3Ccircle%20cx%3D%2218%22%20cy%3D%226%22%20r%3D%223%22%20fill%3D%22rgba(0%2C%200%2C%200%2C%20.2)%22%3E%0A%20%20%20%20%3Canimate%20attributeName%3D%22r%22%20values%3D%223%3B5%3B3%22%20calcMode%3D%22linear%22%20begin%3D%22.33s%22%20dur%3D%221s%22%20repeatCount%3D%22indefinite%22%20%2F%3E%0A%20%20%3C%2Fcircle%3E%0A%20%20%3Ccircle%20cx%3D%2230%22%20cy%3D%226%22%20r%3D%223%22%20fill%3D%22rgba(0%2C%200%2C%200%2C%20.2)%22%3E%0A%20%20%20%20%3Canimate%20attributeName%3D%22r%22%20values%3D%223%3B5%3B3%22%20calcMode%3D%22linear%22%20begin%3D%22.66s%22%20dur%3D%221s%22%20repeatCount%3D%22indefinite%22%20%2F%3E%0A%20%20%3C%2Fcircle%3E%0A%3C%2Fsvg%3E%0A");}.mce-spellchecker-word {background:url("data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D'4'%20height%3D'4'%20xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg'%3E%3Cpath%20stroke%3D'%23ff0000'%20fill%3D'none'%20stroke-linecap%3D'round'%20stroke-opacity%3D'.75'%20d%3D'M0%203L2%201%204%203'%2F%3E%3C%2Fsvg%3E%0A");}
`

css.parse(cssContent);

As a workaround you can disable critical CSS inlining https://angular.io/guide/workspace-config#optimization-configuration.

Lets continue tracking this reworkcss/css#154

[MichalK6677]

I am getting the same error after Angular 12 update.

I used the critical CSS inlining workaround.

Anyway, the repo https://github.com/reworkcss/css does not seem to be very active.

[alan-agius4]

I am getting the same error after Angular 12 update.

I used the critical CSS inlining workaround.

Anyway, the repo https://github.com/reworkcss/css does not seem to be very active.

Yeah, I already highlighted this to the Google Chrome team.

[hwebb]

I'm happy that I'm not the only one getting this issue. It seems to fail on an imported CSS file containing at least 2 background: url(...) and one url has a closing bracket in the string.

[andrew-landsverk-win]

@hwebb How were you able to determine which files were causing the build issues?

[hwebb]

@hwebb How were you able to determine which files were causing the build issues?

I just disabled everything until it worked again, then I enabled 1 by 1 until I found the exact thing that failed and I made some tests on the CSS until I found the specific line... I know it's old school debugging, but there is not much info of where the issue is.
The workaround of alan-agius4 above did work.

[pavelsource]

I am using UIkit in my project and after Angular 12 upgrade I started receiving the following error:

 ng build
✔ Browser application bundle generation complete.
✔ ES5 bundle generation complete.
✔ Copying assets complete.
✖ Index html generation failed.
undefined:15:204028: property missing ':'

After isolating tons of .scss and .css files I found that the following variables in /node_modules/uikit/src/scss/variables-theme.scss are causing this error:

$internal-divider-icon-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2220%22%20height%3D%2220%22%20viewBox%3D%220%200%2020%2020%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Ccircle%20fill%3D%22none%22%20stroke%3D%22#000%22%20stroke-width%3D%222%22%20cx%3D%2210%22%20cy%3D%2210%22%20r%3D%227%22%20%2F%3E%0A%3C%2Fsvg%3E%0A" !default;
$internal-form-select-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2224%22%20height%3D%2216%22%20viewBox%3D%220%200%2024%2016%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Cpolygon%20fill%3D%22#000%22%20points%3D%2212%201%209%206%2015%206%22%20%2F%3E%0A%20%20%20%20%3Cpolygon%20fill%3D%22#000%22%20points%3D%2212%2013%209%208%2015%208%22%20%2F%3E%0A%3C%2Fsvg%3E%0A" !default;
$internal-form-datalist-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2224%22%20height%3D%2216%22%20viewBox%3D%220%200%2024%2016%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Cpolygon%20fill%3D%22#000%22%20points%3D%2212%2012%208%206%2016%206%22%20%2F%3E%0A%3C%2Fsvg%3E%0A" !default;
$internal-form-radio-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2216%22%20height%3D%2216%22%20viewBox%3D%220%200%2016%2016%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Ccircle%20fill%3D%22#000%22%20cx%3D%228%22%20cy%3D%228%22%20r%3D%222%22%20%2F%3E%0A%3C%2Fsvg%3E" !default;
$internal-form-checkbox-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2214%22%20height%3D%2211%22%20viewBox%3D%220%200%2014%2011%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Cpolygon%20fill%3D%22#000%22%20points%3D%2212%201%205%207.5%202%205%201%205.5%205%2010%2013%201.5%22%20%2F%3E%0A%3C%2Fsvg%3E%0A" !default;
$internal-form-checkbox-indeterminate-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2216%22%20height%3D%2216%22%20viewBox%3D%220%200%2016%2016%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Crect%20fill%3D%22#000%22%20x%3D%223%22%20y%3D%228%22%20width%3D%2210%22%20height%3D%221%22%20%2F%3E%0A%3C%2Fsvg%3E" !default;
$internal-list-bullet-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%226%22%20height%3D%226%22%20viewBox%3D%220%200%206%206%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Ccircle%20fill%3D%22#000%22%20cx%3D%223%22%20cy%3D%223%22%20r%3D%223%22%20%2F%3E%0A%3C%2Fsvg%3E" !default;
$internal-nav-parent-close-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2214%22%20height%3D%2214%22%20viewBox%3D%220%200%2014%2014%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Cpolyline%20fill%3D%22none%22%20stroke%3D%22#000%22%20stroke-width%3D%221.1%22%20points%3D%2210%201%204%207%2010%2013%22%20%2F%3E%0A%3C%2Fsvg%3E" !default;
$internal-nav-parent-open-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2214%22%20height%3D%2214%22%20viewBox%3D%220%200%2014%2014%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Cpolyline%20fill%3D%22none%22%20stroke%3D%22#000%22%20stroke-width%3D%221.1%22%20points%3D%221%204%207%2010%2013%204%22%20%2F%3E%0A%3C%2Fsvg%3E" !default;
$internal-accordion-open-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2213%22%20height%3D%2213%22%20viewBox%3D%220%200%2013%2013%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Crect%20fill%3D%22#000%22%20width%3D%2213%22%20height%3D%221%22%20x%3D%220%22%20y%3D%226%22%20%2F%3E%0A%3C%2Fsvg%3E" !default;
$internal-accordion-close-image: "data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2213%22%20height%3D%2213%22%20viewBox%3D%220%200%2013%2013%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%0A%20%20%20%20%3Crect%20fill%3D%22#000%22%20width%3D%2213%22%20height%3D%221%22%20x%3D%220%22%20y%3D%226%22%20%2F%3E%0A%20%20%20%20%3Crect%20fill%3D%22#000%22%20width%3D%221%22%20height%3D%2213%22%20x%3D%226%22%20y%3D%220%22%20%2F%3E%0A%3C%2Fsvg%3E" !default;

Not sure where to go next with it.

[i23591326]

Getting this problem with @angular/material-experimental/mdc-form-field. Looks like it has been broken somewhere at "migrate to the Sass module system" branch (check for changes for mdc-text-field.$focused-label-color for example https://github.com/angular/components/pull/21204/files#diff-334e35073fa3ed0afa80d4f1c4f326384ccc480c2ed62d909c17345dc6fcbe42R22). I guess it's worth mentioning here.

[junekpavel]

I'm having same problem, but with Error: undefined:2:3017528: missing '}'.

Disabling critical CSS inlining worked for me to fix build.

But we are also using Angular Universal and when I run builded ssr application I get the exactly same error.

---

EDIT:

I found the similar workaround - disabling critical CSS inlining even for SSR. If anyone having same issue, you can add inlineCriticalCss: false to ngExpressEngine options:

  server.engine('html', ngExpressEngine({
    bootstrap: module,
    inlineCriticalCss: false,
  }));

[changhuixu]

having the same issue

[codecat15]

what's painful here is that you just get a message which says

✖ Index html generation failed.
undefined:9:396236: property missing ':'

it would be nice if it tells which file is causing the problem with the line number

[hakimio]

@codecat15 you know what would be even more helpful? If reworkcss/css library was maintained and its bugs were fixed.

[kdubious]

I tripped on this by including "node_modules/@clr/ui/clr-ui.css" in my build

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