Cannot read property 'match' of undefined about injection-js HOT 3 CLOSED

import 'reflect-metadata';
import {Injectable, ReflectiveInjector} from "injection-js";
import {AgendaService} from "./app/service/agenda.service";

@Injectable()
class Server {
    constructor(private agendaService: AgendaService) {
    }
}

const injector = ReflectiveInjector.resolveAndCreate([
    AgendaService
]);

const server: Server = injector.get(Server);

// etc
@Injectable()
export class AgendaService {
constructor(){
        this._agenda = new Agenda();
        // edit: the ausent SOME_VAR causes the error
        this._agenda.database(process.env.SOME_VAR);
}
//etc