无法获取未定义或空引用的属性'fromJS'

Question

您好Knockout映射有问题。我已经尝试过了一些来自于有利于冒险的解决方案。代码如下：

{
"PanelDetails": [
    {
        "PanelID": 466,
        "Panel": "581ZDPAD30D",
        "PanelType": 2,
        "Source": "S63B",
        "Substation": "S63",
        "Bay": "615W",
        "Voltage": 480,
        "kVA": 630,
        "Utility": "N",
        "Train": "B",
        "Circuits": 12,
        "Status": "Existing/Re-fed/Re-tag",
        "Drawing": "IRAE-0326"
    }
],
"DPanelCcts": [
    {
        "PanCctID": 1442,
        "PanelID": 466,
        "cct": 1,
        "Base": 250,
        "POCID": null,
        "DateUpdated": null,
        "Assigned": ""
    },
    {
        "PanCctID": 1443,
        "PanelID": 466,
        "cct": 2,
        "Base": 400,
        "POCID": 38,
        "DateUpdated": "/Date(1427842800000)/",
        "Assigned": "EDT113-E04"
    }

};

ko.applyBindings（new PanelViewVM（））;

JSON ajax响应是：

import numpy as np
import matplotlib.pyplot as plt

plt.rcParams['text.usetex'] = True

x = np.arange(10000, 10011)
plt.plot(x)
plt.show()

] }

在地图中，我试图返回PanelDetails对象数组。