angular - o.Subject 不是构造函数 - Angular 10
问题描述
Ng serve和ng build --prod命令工作正常,但是当我在 serve 上部署应用程序时,会出现以下错误:-
TypeError: o.Subject is not a constructor
at new e (vendor-esnext.js:1)
at Object.useFactory (vendor-esnext.js:1)
at Object.i [as factory] (vendor-esnext.js:1)
at Xo.hydrate (vendor-esnext.js:1)
at Xo.get (vendor-esnext.js:1)
at Jf.get (vendor-esnext.js:1)
at Object.get (vendor-esnext.js:1)
at Gn (vendor-esnext.js:1)
at Module.Sl (vendor-esnext.js:1)
at Mn.e.ɵfac [as factory] (vendor-esnext.js:1)
tsconfig.base.json
{"compilerOptions": {
"baseUrl": "",
"allowSyntheticDefaultImports": true,
"declaration": false,
"downlevelIteration": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"lib": [
"dom",
"es2017"
],
"module": "esnext",
"moduleResolution": "node",
"sourceMap": true,
"target": "ESNext",
"paths": {
"@angular/*": [
"node_modules/@angular/*"
]
}},"include": [
"src/**/*.ts",
"node_modules/ng4-fittext/*.d.ts"],"exclude": [],"compileOnSave": false,}
解决方案
import
如果您将主题声明替换如下,该问题将在 Angular 10 及更高版本中得到解决。
代替:
import { Subject } from "rxjs/Subject";
和:
import { Subject } from "rxjs";
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