I have a question?

[happyzhanhan]

why after I install.my workprogram issues note "Error in mounted hook: "TypeError: Cannot read property 'createTriangle' of undefined"".how can I do for it??

[purestart]

you should add ref="canvas" in fabric component and please updated vue-fabric at latest version 0.1.15
such as:
<vue-fabric ref="canvas" :width="width" :height="height"></vue-fabric>

usage:
this.$refs.canvas.createTriangle(params)

[happyzhanhan]

Error in created hook: "TypeError: Cannot read property 'createTriangle' of undefined".

[purestart]

please attach your code !!

[purestart]

let options = {
  x: 50,
  y: 120,
  x1: 80,
  y1: 140,
  x2: 30,
  y2: 60,
  color: "#F00",
  drawWidth: 2
}
this.$refs.canvas.createTriangle(options)

[happyzhanhan]

thank you very much! I found the problem.
eg.
methods:{
init(){
/console.log(this.$refs.canvas);
this.$refs.canvas.createRect({
width: 20,
height: 30,
fillColor: 'blue',
left: 50,
top: 50
});/
//this.$refs.input1.value="2222";

  console.log(this.$refs);
  console.log(this.$refs.input1);
  console.log(this.$refs.canvas);

},
inputchange(){
  console.log(11111111111);
  console.log(this.$refs);
  console.log(this.$refs.input1);
   console.log(this.$refs.canvas);
}

}

[happyzhanhan]

need write in mounted(){}.