关系图的data.name值不能有重复数据么？echarts graph配置项内容和展示

因为项目的需要，在关系图展示中，会有name数据重复的情况，不能去重，因为重复的那个节点会有相应的与其对应的其他不同于之前的数据。但是现在name一旦重复就会报错，图出不来，请问有什么api可以设置，或避免这个问题么？

      var datas=[],links=[],categories=[];
    datas=[
        {
            name:'echart',
            category:'0',
            symbolSize: 42
        },{
            name:'e',
            category:'1',
            symbolSize: 26
        },
        {
            name:'c',
            category:'1',
            symbolSize: 28
        },{
            name:'h',
            category:'1',
            symbolSize: 24
        },{
            name:'a',
            category:'1',
            symbolSize: 20
        },{
            name:'r',
            category:'1',
            symbolSize: 16
        },{
            name:'t',
            category:'1',
            symbolSize: 16
        },{
            name:'s',
            category:'2',
            symbolSize: 16
        },/*{
            name:'t',
            category:'3',
            symbolSize: 14
        },{
            name:'abc',
            category:'4',
            symbolSize: 14
        }*/
    ];
    links=[
        {
            source: 'echart',
            target: 'e'
        },{
            source: 'echart',
            target: 'c'
        },{
            source: 'echart',
            target: 'h'
        },{
            source: 'echart',
            target: 'a'
        },{
            source: 'echart',
            target: 'r'
        },{
            source: 'echart',
            target: 't'
        },{
            source: 't',
            target: 's'
        },/*{
            source: 's',
            target: 't'
        },{
            source: 't',
            target: 'abc'
        }*/

    ];
    categories=[
        {
           name:'0'
        },{
            name:'1'
        },{
            name:'2'
        },{
            name:'3'
        },{
            name:'4'
        }
        
    ]
option = {
    animationDuration: 500,
    animationEasingUpdate: 'quinticInOut',
    series: [{
            name: '区域经济主题视图',
            type: 'graph',
            layout: 'force',
            force: {
                initLayout: 'circular',
                repulsion: 320,
                gravity:0.2
            },
            draggable: "true",
            data:datas,
            links:links,
            categories:categories,
            focusNodeAdjacency: true,
            roam: true,
            label: {
                normal: {
                    show: true,
                    position: 'top',

                }
            },
            lineStyle: {
                normal: {
                    color: 'source',
                    curveness: 0.2,
                    type: "solid"
                }
            }
        }]
};