decode方法报错，Error decoding QR code: e: No MultiFormat Readers were able to detect the code. 对图片截取出二维码或者用选取手机相册的二维码也是一样，二维码没问题 下面是源码 onReady() {     this.ctx = wx.createCameraContext();     this.setZoom();     this.listener = this.ctx.onCameraFrame(this.processFrame.bind(this));     this.listener.start();  }, processFrame(frame) {  const {    width,    height,    data  } = frame;    this.setData({      cutSize: height    });    /* 对当前帧的视频流进行处理 */  let imageData = new Uint8ClampedArray(data);  let result = null  try {    // 检查数据长度是否符合预期：width * height * 4    if (imageData.length !== width * height * 4) {      console.error('图像数据尺寸不匹配');      return;    }    const reader = new MultiFormatReader();    const luminanceSource = new RGBLuminanceSource(imageData, width, height);    const binaryBitmap = new BinaryBitmap(new HybridBinarizer(luminanceSource));    const hints = new Map();    // 修改 hints 配置    hints.set(DecodeHintType.TRY_HARDER, true); // 深度扫描    hints.set(DecodeHintType.POSSIBLE_FORMATS, [BarcodeFormat.QR_CODE]); // 限定格式    hints.set(DecodeHintType.PURE_BARCODE, true); // 假设整个图像就是二维码    hints.set(DecodeHintType.CHARACTER_SET, 'UTF-8'); // 指定字符集    hints.set(DecodeHintType.ALSO_INVERTED, true);    // 允许反转颜色    result = reader.decode(binaryBitmap, hints);    this.setData({      scanResult: result.getText()    });    //this.stopScan();  } catch (e) {    console.log('Error decoding QR code:', e);    this.setData({      scanResult: e.message    });  }  const ctxZO = wx.createCanvasContext('cutCanvasZO');  wx.canvasPutImageData({    canvasId: 'cutCanvasZO',    x: 0,    y: 0,    width: width,    height: height,    data: imageData,    success: () => {},    fail: (err) => {      console.error('croppedData 失败', err);    }  }); },