Angularjs nvd3 directives Nv-d3-指令类型错误：无法读取属性'；长度'；未定义角的

我在尝试集成从api获得的数据时遇到了错误

我已将以下文件包括在index.html中：

<script src="http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js" charset="utf-8"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.js"></script>
<script src="http://cmaurer.github.io/angularjs-nvd3-directives/lib/angularjs-nvd3-directives/dist/angularjs-nvd3-directives.js"></script>

forecast返回具有结构的对象数组

[Object, Object, Object]

这是我得到的错误：

nv.d3.min.js:5 Uncaught TypeError: Cannot read property 'length' of undefined
    at https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.js:5:56
    at Array.filter (native)
    at SVGSVGElement.<anonymous> (https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.js:5:22)
    at http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js:5:3691
    at C (http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js:1:3397)
    at Array.Cs.each (http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js:5:3643)
    at Array.b (https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.js:4:31618)
    at Array.ma.call (http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js:3:9080)
    at checkElementID (http://cmaurer.github.io/angularjs-nvd3-directives/lib/angularjs-nvd3-directives/dist/angularjs-nvd3-directives.js:795:216)
    at Scope.$scope.d3Call (http://cmaurer.github.io/angularjs-nvd3-directives/lib/angularjs-nvd3-directives/dist/angularjs-nvd3-directives.js:884:15)

nv.d3.min.js:5未捕获类型错误：无法读取未定义的属性“length”
在https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.js:5:56
at Array.filter（本机）
在SVGSVGElement。(https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.js:5:22)
在http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js:5:3691
在C(http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js:1:3397)
在Array.Cs.each(http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js:5:3643)
在数组中(https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.js:4:31618)
在Array.ma.call(http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js:3:9080)
在checkElementID(http://cmaurer.github.io/angularjs-nvd3-directives/lib/angularjs-nvd3-directives/dist/angularjs-nvd3-directives.js:795:216)
在作用域处。$Scope.d3调用(http://cmaurer.github.io/angularjs-nvd3-directives/lib/angularjs-nvd3-directives/dist/angularjs-nvd3-directives.js:884:15)

请让我知道，如果需要更多的信息，我们将很乐意提供它

感谢您的帮助或指导

提前谢谢

[Object, Object, Object]

nv.d3.min.js:5 Uncaught TypeError: Cannot read property 'length' of undefined
    at https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.js:5:56
    at Array.filter (native)
    at SVGSVGElement.<anonymous> (https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.js:5:22)
    at http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js:5:3691
    at C (http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js:1:3397)
    at Array.Cs.each (http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js:5:3643)
    at Array.b (https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.js:4:31618)
    at Array.ma.call (http://cdnjs.cloudflare.com/ajax/libs/d3/3.3.9/d3.min.js:3:9080)
    at checkElementID (http://cmaurer.github.io/angularjs-nvd3-directives/lib/angularjs-nvd3-directives/dist/angularjs-nvd3-directives.js:795:216)
    at Scope.$scope.d3Call (http://cmaurer.github.io/angularjs-nvd3-directives/lib/angularjs-nvd3-directives/dist/angularjs-nvd3-directives.js:884:15)