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wuye-manager-uniapp/uni_modules/qiun-data-charts/components/qiun-data-charts/qiun-data-charts.vue

@@ -869,7 +869,9 @@ export default {
         const ctx = cfu.option[cid].context;
         if(typeof ctx === "object" && !!!cfu.option[cid].update){
           ctx.clearRect(0, 0, this.cWidth*this.pixel, this.cHeight*this.pixel);
-          ctx.draw();
+          if (typeof ctx.draw === 'function') {
+            ctx.draw();
+          }
         }
       }
     },