Angular 7- ng build --prod TypeError:无法读取未定义的属性“%1”

Question

在为生产ng buid --prod构建我的Angular项目时，我得到了以下错误：

10%构建模块3/4模块1 active .../client/src/styles.sass/media/client/node_modules/clean-css/lib/optimizer/level-1/optimize.js:429 context.warnings.push(‘位于’+ formatPosition(value2) +‘的无效值标记。忽略。‘)；

TypeError: Cannot read property '1' of undefined
    at optimizeBody (/media/client/node_modules/clean-css/lib/optimizer/level-1/optimize.js:429:82)
    at level1Optimize (/media/client/node_modules/clean-css/lib/optimizer/level-1/optimize.js:657:9)
    at level1Optimize (/media/client/node_modules/clean-css/lib/optimizer/level-1/optimize.js:648:9)
    at optimize (/media/client/node_modules/clean-css/lib/clean.js:144:5)
    at /media/client/node_modules/clean-css/lib/clean.js:120:29
    at /media/client/node_modules/clean-css/lib/reader/read-sources.js:26:64
    at loadOriginalSources (/media/client/node_modules/clean-css/lib/reader/load-original-sources.js:26:5)
    at /media/client/node_modules/clean-css/lib/reader/read-sources.js:26:14
    at applySourceMaps (/media/client/node_modules/clean-css/lib/reader/apply-source-maps.js:34:5)
    at /media/client/node_modules/clean-css/lib/reader/read-sources.js:25:12
    at fromStyles (/media/client/node_modules/clean-css/lib/reader/read-sources.js:152:5)
    at fromString (/media/client/node_modules/clean-css/lib/reader/read-sources.js:48:10)
    at doReadSources (/media/client/node_modules/clean-css/lib/reader/read-sources.js:33:12)
    at readSources (/media/client/node_modules/clean-css/lib/reader/read-sources.js:24:10)
    at /media/client/node_modules/clean-css/lib/clean.js:115:12
    at _combinedTickCallback (internal/process/next_tick.js:131:7)

早些时候，这一天一切正常。但现在是这样。

这似乎是由一些css优化器clean-css造成的，但我不知道如何修复它。(我尝试升级并重新安装angular)

Answer 1

我找到问题了。

这真的很愚蠢，我不知道为什么我在发球的时候会出错。

我在我的.sass文件中忘了一个空格

我写道：transform:rotate(360deg)

但它应该是：transform: rotate(360deg)