diff --git a/app/Models/Project.php b/app/Models/Project.php
index 43b810d5..9e27527c 100644
--- a/app/Models/Project.php
+++ b/app/Models/Project.php
@@ -379,7 +379,7 @@ class Project extends AbstractModel
         }
         $project = $builder->first();
         if (empty($project)) {
-            throw new ApiException('项目不存在或不在成员列表内');
+            throw new ApiException('项目不存在或不在成员列表内', [ 'project_id' => $project_id ], -4001);
         }
         return $project;
     }
diff --git a/app/Models/ProjectTask.php b/app/Models/ProjectTask.php
index 681bb06e..02910ae6 100644
--- a/app/Models/ProjectTask.php
+++ b/app/Models/ProjectTask.php
@@ -7,6 +7,7 @@ use App\Module\Base;
 use App\Tasks\PushTask;
 use Arr;
 use Carbon\Carbon;
+use Exception;
 use Hhxsv5\LaravelS\Swoole\Task\Task;
 use Illuminate\Database\Eloquent\SoftDeletes;
 use Request;
@@ -753,16 +754,20 @@ class ProjectTask extends AbstractModel
         }
         $task = $builder->first();
         if (empty($task)) {
-            throw new ApiException('任务不存在');
+            throw new ApiException('任务不存在', [ 'task_id' => $task_id ], -4002);
         }
         //
-        if (ProjectTaskUser::whereUserid(User::userid())->whereTaskPid($task->id)->exists()) {
-            $project = Project::find($task->project_id);
-            if (empty($project)) {
-                throw new ApiException('项目不存在或已被删除');
-            }
-        } else {
+        try {
             $project = Project::userProject($task->project_id, $ignoreArchived);
+        } catch (Exception $e) {
+            if (ProjectTaskUser::whereUserid(User::userid())->whereTaskPid($task->id)->exists()) {
+                $project = Project::find($task->project_id);
+                if (empty($project)) {
+                    throw new ApiException('项目不存在或已被删除', [ 'task_id' => $task_id ], -4002);
+                }
+            } else {
+                throw new ApiException($e->getMessage(), [ 'task_id' => $task_id ], -4002);
+            }
         }
         //
         return $task;
diff --git a/app/Models/WebSocketDialog.php b/app/Models/WebSocketDialog.php
index 713bbd9a..cf982425 100644
--- a/app/Models/WebSocketDialog.php
+++ b/app/Models/WebSocketDialog.php
@@ -65,14 +65,14 @@ class WebSocketDialog extends AbstractModel
 
     /**
      * 获取对话（同时检验对话身份）
-     * @param $id
+     * @param $dialog_id
      * @return self
      */
-    public static function checkDialog($id)
+    public static function checkDialog($dialog_id)
     {
-        $dialog = WebSocketDialog::whereId($id)->first();
+        $dialog = WebSocketDialog::find($dialog_id);
         if (empty($dialog)) {
-            throw new ApiException('对话不存在或已被删除');
+            throw new ApiException('对话不存在或已被删除', ['dialog_id' => $dialog_id], -4003);
         }
         //
         $userid = User::userid();
diff --git a/resources/assets/js/pages/manage/components/DialogWrapper.vue b/resources/assets/js/pages/manage/components/DialogWrapper.vue
index 606d0ccb..14484d70 100644
--- a/resources/assets/js/pages/manage/components/DialogWrapper.vue
+++ b/resources/assets/js/pages/manage/components/DialogWrapper.vue
@@ -1,5 +1,6 @@
 <template>
     <div
+        v-if="dialogData && dialogData.id"
         class="dialog-wrapper"
         @drop.prevent="chatPasteDrag($event, 'drag')"
         @dragover.prevent="chatDragOver(true, $event)"
diff --git a/resources/assets/js/pages/manage/messenger.vue b/resources/assets/js/pages/manage/messenger.vue
index f965682b..a0565439 100644
--- a/resources/assets/js/pages/manage/messenger.vue
+++ b/resources/assets/js/pages/manage/messenger.vue
@@ -69,15 +69,15 @@
             </div>
 
             <div class="messenger-msg">
+                <div class="msg-dialog-bg">
+                    <div class="msg-dialog-bg-icon"><Icon type="ios-chatbubbles" /></div>
+                    <div class="msg-dialog-bg-text">{{$L('选择一个会话开始聊天')}}</div>
+                </div>
                 <DialogWrapper v-if="dialogId > 0" :dialogId="dialogId" @on-active="scrollIntoActive">
                     <div slot="inputBefore" class="dialog-back" @click="closeDialog">
                         <Icon type="md-arrow-back" />
                     </div>
                 </DialogWrapper>
-                <div v-else class="dialog-no">
-                    <div class="dialog-no-icon"><Icon type="ios-chatbubbles" /></div>
-                    <div class="dialog-no-text">{{$L('选择一个会话开始聊天')}}</div>
-                </div>
             </div>
         </div>
     </div>
diff --git a/resources/assets/js/store/actions.js b/resources/assets/js/store/actions.js
index 546ea130..85489e72 100644
--- a/resources/assets/js/store/actions.js
+++ b/resources/assets/js/store/actions.js
@@ -61,6 +61,14 @@ export default {
                     resolve({data, msg});
                 } else {
                     reject({data, msg: msg || "Unknown error"})
+                    //
+                    if (ret === -4001) {
+                        dispatch("forgetProject", data.project_id);
+                    } else if (ret === -4002) {
+                        dispatch("forgetTask", data.task_id);
+                    } else if (ret === -4003) {
+                        dispatch("forgetDialog", data.dialog_id);
+                    }
                 }
             };
             params.error = () => {
@@ -1287,6 +1295,24 @@ export default {
         }
     },
 
+    /**
+     * 忘记对话数据
+     * @param state
+     * @param dialog_id
+     */
+    forgetDialog({state}, dialog_id) {
+        let index = state.dialogs.findIndex(({id}) => id == dialog_id);
+        if (index > -1) {
+            state.dialogs.splice(index, 1);
+        }
+        if (dialog_id == state.method.getStorageInt("messenger::dialogId")) {
+            state.method.setStorage("messenger::dialogId", 0)
+        }
+        setTimeout(() => {
+            state.method.setStorage("cacheDialogs", state.cacheDialogs = state.dialogs);
+        })
+    },
+
     /** *****************************************************************************************/
     /** ************************************** 消息 **********************************************/
     /** *****************************************************************************************/
diff --git a/resources/assets/sass/pages/page-messenger.scss b/resources/assets/sass/pages/page-messenger.scss
index 1333e791..43db1f27 100644
--- a/resources/assets/sass/pages/page-messenger.scss
+++ b/resources/assets/sass/pages/page-messenger.scss
@@ -269,13 +269,19 @@
                     }
                 }
             }
-            .dialog-no {
+            .msg-dialog-bg {
+                position: absolute;
+                top: 0;
+                left: 0;
+                right: 0;
+                bottom: 0;
+                z-index: 0;
                 flex: 1;
                 display: flex;
                 flex-direction: column;
                 align-items: center;
                 justify-content: center;
-                .dialog-no-icon {
+                .msg-dialog-bg-icon {
                     background-color: #f4f5f7;
                     padding: 20px;
                     border-radius: 50%;
@@ -284,7 +290,7 @@
                         font-size: 46px;
                     }
                 }
-                .dialog-no-text {
+                .msg-dialog-bg-text {
                     margin-top: 16px;
                     color: #bec6cc;
                     background-color: #f4f5f7;