在角度5到7更新后无法建立prod，测量误差。

Question

我有一个角-cli项目的角5.2。我更新到了7.2.3角。一切都很好，ng serve，ng test，但是当我想要ng build --prod时，我会出错

我一步一步地遵循指南(https://update.angular.io/)

以下是错误：

ERROR in runtime.82c6613acef8f7246fe8.js from Terser
TypeError: Cannot read property 'minify' of undefined
    at minify (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/terser-webpack-plugin/dist/minify.js:175:23)
    at module.exports (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/terser-webpack-plugin/dist/worker.js:13:40)
    at handle (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/worker-farm/lib/child/index.js:44:8)
    at process.<anonymous> (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/worker-farm/lib/child/index.js:51:3)
    at process.emit (events.js:180:13)
    at emit (internal/child_process.js:783:12)
    at process._tickCallback (internal/process/next_tick.js:178:19)
ERROR in main.ae88265d57a522e8fef6.js from Terser
TypeError: Cannot read property 'minify' of undefined
    at minify (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/terser-webpack-plugin/dist/minify.js:175:23)
    at module.exports (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/terser-webpack-plugin/dist/worker.js:13:40)
    at handle (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/worker-farm/lib/child/index.js:44:8)
    at process.<anonymous> (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/worker-farm/lib/child/index.js:51:3)
    at process.emit (events.js:180:13)
    at emit (internal/child_process.js:783:12)
    at process._tickCallback (internal/process/next_tick.js:178:19)
ERROR in polyfills.93cd0d5603ed4cb47cce.js from Terser
TypeError: Cannot read property 'minify' of undefined
    at minify (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/terser-webpack-plugin/dist/minify.js:175:23)
    at module.exports (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/terser-webpack-plugin/dist/worker.js:13:40)
    at handle (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/worker-farm/lib/child/index.js:44:8)
    at process.<anonymous> (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/worker-farm/lib/child/index.js:51:3)
    at process.emit (events.js:180:13)
    at emit (internal/child_process.js:783:12)
    at process._tickCallback (internal/process/next_tick.js:178:19)
ERROR in styles.dcc46c6ff0d6be4a76ad.js from Terser
TypeError: Cannot read property 'minify' of undefined
    at minify (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/terser-webpack-plugin/dist/minify.js:175:23)
    at module.exports (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/terser-webpack-plugin/dist/worker.js:13:40)
    at handle (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/worker-farm/lib/child/index.js:44:8)
    at process.<anonymous> (/Users/nicolasgarin/Desktop/afreecom/front/node_modules/worker-farm/lib/child/index.js:51:3)
    at process.emit (events.js:180:13)
    at emit (internal/child_process.js:783:12)
    at process._tickCallback (internal/process/next_tick.js:178:19)

我不知道是怎么回事，谷歌也没帮我

Answer 1

这是当前版本的terser的一个问题，到目前为止，您应该将package.json中的版本设置为3.14.1，如下所示："terser": "3.14.1",

如果您有"terser": "^3.14.1",，那么一定要删除^。