Angular 7 ERROR ReferenceError: SystemJS is not defined

user_5119547 0
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I'm creating an angular 7 project with systemjs to load dynamically a module.

When I try to use it, I have this error:

 ERROR ReferenceError: SystemJS is not defined

My package.json contain systemjs: 2.1.1

I added systemjs path to section scripts in my angular.json

"./node_modules/systemjs/dist/system.js"

I declared SystemJs to use it in my service:

declare const SystemJS;

and I'm trying to using like this, in this function:

loadModuleSystemJS(moduleInfo: ModuleData): Promise<any> {
    const url = this.source + moduleInfo.location;
    SystemJS.set('@angular/core', SystemJS.newModule(AngularCore));
    SystemJS.set('@angular/common', SystemJS.newModule(AngularCommon));
    SystemJS.set('@angular/router', SystemJS.newModule(AngularRouter));
    SystemJS.set('@angular/platform-browser/animations', SystemJS.newModule(BrowserAnimations));

    // now, import the new module
    return SystemJS.import(`${url}`).then((module) => {
      return this.compiler.compileModuleAndAllComponentsAsync(module[`${moduleInfo.moduleName}`]).then(compiled => {
        return module;
      });
    });
  }

Maybe I've missed something,

Can you help me ?

systemjs angular7 angular typescript
3 Answers
user_50785810
user_19589410

Since Angular 6, you have to provide the absolute path from node_modules. Something like this:

{
  ...
  "projects": {
    "demo": {
      ...,
      "architect": {
        "build": {
          ...
          "options": {
            ...
            "scripts": [ "node_modules/systemjs/dist/system.js" ]
          },
          ...
        },
        ...
      }
    }
  },
  ...
}

Here's a Sample StackBlitz for your ref.

Note that I've used it in app.component.ts where I'm logging the typeof SystemJS.set

user_26222920
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