Ionic3 问题汇总

1、
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 };