修改

src/components/bpmnProcessDesigner/package/designer/index.js

@@ -0,0 +1,8 @@
+import MyProcessDesigner from "./ProcessDesigner.vue";
+
+MyProcessDesigner.install = function(Vue) {
+  Vue.component(MyProcessDesigner.name, MyProcessDesigner);
+};
+
+// 流程图的设计器，可编辑
+export default MyProcessDesigner;