这个警告在运行webpack时打印了大约20次——它处理和打包都很好，但这是什么意思？我该如何摆脱它？不幸的是，谷歌搜索几乎没有帮助。这是我的webpack配置:constExtractTextPlugin=require("extract-text-webpack-plugin");varwebpack=require("webpack");module.exports={entry:{dashboard:'./js/main.js',vendor:["fixed-data-table","react","react-dom","jquery","bootstrap","vis",]

我正在使用jpegoptim和optipng来优化来自浏览器中调用的php脚本的图像。我这样做:$s=exec('/myoptimizer/jpegoptim-m60-o--strip-all/httpd/images/myimage.jpg');print$s;这工作正常并输出:/httpd/images/myimage.jpg600x9024bitPJFIF[OK]14572-->14542bytes(0.21%),optimized.现在与optipng相同:$s=exec('/myoptimizer/optipng-o7-preserve-stripall/httpd/imag