E:\myvss\AndroidItem\NewEazyApp\newEazyApp>ionic cordova build android Running app-scripts build: --platform android --target cordova [08:55:41] build dev started ... [08:55:41] clean started ... [08:55:41] clean finished in 12 ms [08:55:41] copy started ... [08:55:42] deeplinks started ... [08:55:42] deeplinks finished in 49 ms [08:55:42] transpile started ... [08:55:50] transpile finished in 8.05 s [08:55:50] preprocess started ... [08:55:50] preprocess finished in 2 ms [08:55:50] webpack started ... [08:55:50] copy finished in 9.16 s [08:56:04] webpack finished in 14.00 s [08:56:04] sass started ... Without `from` option PostCSS could generate wrong source map and will not find Browserslist config. Set it to CSS file path or to `undefined` to prevent this warning. [08:56:06] sass finished in 2.20 s [08:56:06] postprocess started ... [08:56:06] postprocess finished in 11 ms [08:56:06] lint started ... [08:56:06] build dev finished in 25.28 s > cordova build android ANDROID_HOME=F:\ionic\AppData\Local\Android\Sdk JAVA_HOME=E:\Program Files (x86)\java
错误信息：Without `from` option PostCSS could generate wrong source map and will not find Browserslist config. Set it to CSS file path or to `undefined` to prevent this warning.
解决方法：
在“/node_modules/@ionic/app-scripts/dist/sass.js”路径的“sass.js”文件，在postcssOptions参数中添加“from: undefined”。添加后效果如下：
var postcssOptions = {
from: undefined,
to: path_1.basename(sassConfig.outFile),
map: autoPrefixerMapOptions
};