Angular cordova中的Razorpay集成[未定义RazorPayCheckout]

我收到RazorPayCheckout未定义错误。关于stackoverflow，类似的问题很少，但没有答案。请帮忙。提前谢谢

app.component.html

 <button (click)="payWithRazor()">Proceed to Pay</button>

声明.d.ts

payWithRazor() {
    var options = {
      key: 'KEY', // add razorpay key here
      name: 'Bunto Couriers Pvt. Ltd.',
      description: 'Delivery Fee',
      amount: this.price*100, // razorpay takes amount in paisa
      prefill: {
        name: '',
        email: '', // add your email id
      },
      image: 'link', 
      notes: {},
      theme: {
        color: '#00FF00'
      },
      modal: {
        ondismiss: (() => {
          this.zone.run(() => {
            // add current page routing if payment fail
          })
        })
      }
    };

    var successCallback = function (payment_id) {
      alert('payment_id: ' + payment_id);
    };

    var cancelCallback = function (error) {
      alert(error.description + ' (Error ' + error.code + ')');
    };
    RazorpayCheckout.on('payment.success', successCallback);
    RazorpayCheckout.on('payment.cancel', cancelCallback);
    RazorpayCheckout.open(options);
    // RazorpayCheckout.open(options, successCallback, cancelCallback);
  }

declare module '*';

declare var RazorpayCheckout: any;

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我已经为Cordova添加了RazorPay插件。您确定在安装后使用该插件吗？另外，确保插件安装正确，没有错误