Component series.line not exists. Load it first.

Angular中使用echarts图标库时报了如下错误：

core.js:6189 ERROR Error: Component series.line not exists. Load it first.at Function.entity.getClass (clazz.js:178)at ExtendedClass.<anonymous> (Global.js:223)at Array.forEach (<anonymous>)at each (util.js:300)at ExtendedClass.visitComponent (Global.js:212)at Function.entity.topologicalTravel (component.js:125)at ExtendedClass.mergeOption (Global.js:194)at ExtendedClass.initBase (Global.js:663)at ExtendedClass.resetOption (Global.js:141)at ExtendedClass.setOption (Global.js:123)

检查了package.json，确认库已经安装好了:

"echarts": "^4.7.0",
"ngx-echarts": "^4.2.2",
"@types/echarts": "^4.4.6",

option的字段也是按照官方文档来设置的。检查模块导入时，发现是NgxEchartsModule没有导入，尝试导入:

import { NgxEchartsModule } from 'ngx-echarts';@NgModule({declarations: [AppComponent],entryComponents: [],imports: [BrowserModule,IonicModule.forRoot(),AppRoutingModule,// ...NgxEchartsModule,// ...IonicStorageModule.forRoot(),],providers: [// ...],bootstrap: [AppComponent],
})
export class AppModule {}

重新编译程序恢复正常。

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