From caf9915382f2f2dd80d6f7801a36c6ad7e344dda Mon Sep 17 00:00:00 2001
From: "mario.gk" <mario.gk@alibaba-inc.com>
Date: Fri, 17 Jul 2020 14:06:31 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E5=AF=BC=E5=85=A5?=
 =?UTF-8?q?=E7=9A=84=E7=BB=84=E4=BB=B6=E6=8B=96=E5=85=A5=E7=94=BB=E5=B8=83?=
 =?UTF-8?q?=E6=8A=A5=E9=94=99?=
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---
 packages/designer/src/builtin-simulator/host.ts          | 2 +-
 packages/plugin-outline-pane/src/views/tree-branches.tsx | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/designer/src/builtin-simulator/host.ts b/packages/designer/src/builtin-simulator/host.ts
index d71715cc6..5c9c2ae60 100644
--- a/packages/designer/src/builtin-simulator/host.ts
+++ b/packages/designer/src/builtin-simulator/host.ts
@@ -826,7 +826,7 @@ export class BuiltinSimulatorHost implements ISimulatorHost<BuiltinSimulatorProp
       event: e,
     };
 
-    if (e.dragObject.type === 'node' && e.dragObject.nodes[0].getPrototype().isModal()) {
+    if (e.dragObject.type === 'node' && e.dragObject.nodes[0]?.getPrototype()?.isModal()) {
       return this.designer.createLocation({
         target: this.document.rootNode,
         detail: {
diff --git a/packages/plugin-outline-pane/src/views/tree-branches.tsx b/packages/plugin-outline-pane/src/views/tree-branches.tsx
index d3418277e..879d50fda 100644
--- a/packages/plugin-outline-pane/src/views/tree-branches.tsx
+++ b/packages/plugin-outline-pane/src/views/tree-branches.tsx
@@ -71,7 +71,7 @@ class TreeNodeChildren extends Component<{
       />
     );
     treeNode.children?.forEach((child, index) => {
-      const childIsModal = child.node.getPrototype().isModal();
+      const childIsModal = child.node.getPrototype()?.isModal() || false;
       if (isModal != childIsModal) {
         return;
       }