Error! when all value in array is zero.

[filmcup]

all zero value in array i got some error "Uncaught TypeError: Cannot read property 'constructor' of null"

// sample data array
  var sample_data = [
    {"year": 1991, "name":"alpha", "value": 0},
    {"year": 1992, "name":"alpha", "value": 0},
    {"year": 1993, "name":"alpha", "value": 0},
    {"year": 1994, "name":"alpha", "value": 0},
    {"year": 1995, "name":"alpha", "value": 0}
  ]
  // instantiate d3plus
  var chartId = "chart1283";
  var visualization = d3plus.viz()
    .container("#" + chartId)  // container DIV to hold the visualization
    .data(sample_data)  // data to use with the visualization
    .type("line")       // visualization type
    .id("name")         // key for which our data is unique on
    .text("name")       // key to use for display text
    .y("value")         // key to use for y-axis
    .x("year")          // key to use for x-axis
    .height(500)
    .draw()             // finally, draw the visualization!