Hello,
I'm using the reactive-component-loader library (https://github.com/wishtack/wishtack-steroids/tree/master/packages/reactive-component-loader) to be able to use Lazy Load Non-Routable Modules.

@NgModule({
    ...
    imports: [
        ReactiveComponentLoaderModule.withModule({
            moduleId: 'todo-form-v1',
            loadChildren: './todo-form-v1/todo-form-v1.module#TodoFormV1Module'
        }),
        ReactiveComponentLoaderModule.withModule({
            moduleId: 'todo-form-v2',
            loadChildren: './todo-form-v2/todo-form-v2.module#TodoFormV2Module'
        }),
    ]
    ...
})
export class TodoListModule {
}

When compiling this part of the code shows the error:

While building for web.browser: imports/app/app.module.js:59:110: Unterminated string constant (59:110)

If I add a comma at the end of the line, this way:

ReactiveComponentLoaderModule.withModule({
       moduleId: 'todo-form-v2',
       loadChildren: './todo-form-v2/todo-form-v2.module#TodoFormV2Module',
}),

Show this error when I try to use the library:
ERROR TypeError: path.split is not a function

Because the loadAndCompile method of SystemJsNgModuleLoader the path is not a string:

SystemJsNgModuleLoader.prototype.loadAndCompile = function (path) {
    var _this = this;
    var _a = __read(path.split(_SEPARATOR), 2), module = _a[0], exportName = _a[1];
    if (exportName === undefined) {
        exportName = 'default';
    }
    return System.import(module)
        .then(function (module) { return module[exportName]; })
        .then(function (type) { return checkNotEmpty(type, module, exportName); })
        .then(function (type) { return _this._compiler.compileModuleAsync(type); });
};

The only way to solve it has been like this:

ReactiveComponentLoaderModule.withModule({
    moduleId: 'title-v2',
    loadChildren: ('./title-v2.module#TitleV2Module').toString()
}),

I do not know if it's because of how MeteorCLI build.

Once this has been solved, it shows me this error:
ERROR ReferenceError: System is not defined at SystemJsNgModuleLoader.loadAndCompile

And I've solved it by adding the following line of code in the polyfills.ts file, but I do not know if it's the right way:
import 'systemjs/dist/system.js';

The last error I've had has been when trying to import title-v1.module
ERROR SyntaxError: Unexpected token <

I do not know how to solve this, I've set up a project with only Angular 7 with this library and it works well.
I am using Meteor 1.8.1 and Angular 7.2.0

Thanks in advance and I'm sorry if it's not a compiled error and I should not go here.
Regards