diff --git a/dashboard/src2/components/site/InstallAppDialog.vue b/dashboard/src2/components/site/InstallAppDialog.vue
index 83acd24..4a1bf8d 100644
--- a/dashboard/src2/components/site/InstallAppDialog.vue
+++ b/dashboard/src2/components/site/InstallAppDialog.vue
@@ -1,237 +1,196 @@
-<template>
-	<Dialog
-		v-model="show"
-		:options="{
-			title: '在您的站点上安装应用',
-			size: '4xl'
-		}"
-	>
-		<template #body-content>
-			<ObjectList :options="listOptions" />
-		</template>
-	</Dialog>
-</template>
-
-<script>
-import { getCachedDocumentResource, createResource } from 'jingrow-ui';
-import { defineAsyncComponent, h } from 'vue';
-import { toast } from 'vue-sonner';
-import { renderDialog } from '../../utils/components';
-import router from '../../router';
-import ObjectList from '../ObjectList.vue';
-import { getToastErrorMessage } from '../../utils/toast';
-
-export default {
-	props: {
-		site: {
-			type: String,
-			required: true
-		}
-	},
-	emits: ['installed'],
-	components: {
-		ObjectList
-	},
-	data() {
-		return {
-			show: true,
-			currentApp: null,
-			retryCount: 0
-		};
-	},
-	resources: {
-		// 添加API资源定义：检查应用是否可安装
-		checkAppInstallable() {
-			return {
-				url: 'jcloud.api.site.check_app_installable',
-				params: {
-					name: this.site,
-					app: this.currentApp
-				},
-				auto: false
-			};
-		}
-	},
-	computed: {
-		$site() {
-			return getCachedDocumentResource('Site', this.site);
-		},
-		listOptions() {
-			const handleInstall = async row => {
-				if (this.$site.installApp.loading) return;
-
-				// 设置当前应用以便资源可以使用
-				this.currentApp = row.app;
-				this.retryCount = 0
-				
-				// 打印关键变量进行调试
-				console.log('=== 安装应用调试信息 ===');
-				console.log('站点名称:', this.site);
-				console.log('应用ID:', this.currentApp);
-				console.log('站点对象:', this.$site);
-				console.log('站点plan:', this.$site.pg?.plan);
-				console.log('=== 调试信息结束 ===');
-				
-				try {
-					// 尝试获取应用安装权限信息，最多重试2次
-					let checkResult = null;
-					let apiCalled = false;
-					
-					while (!checkResult && this.retryCount < 3) {
-						console.log(`正在调用check_app_installable API... (尝试 ${this.retryCount + 1}/3)`);
-						apiCalled = true;
-						
-						await this.$resources.checkAppInstallable.submit();
-						
-						console.log('API调用完成，状态:', {
-							loading: this.$resources.checkAppInstallable.loading,
-							error: this.$resources.checkAppInstallable.error
-						});
-						
-						// 获取检查结果
-						checkResult = this.$resources.checkAppInstallable.data;
-						console.log('API返回结果:', checkResult);
-						
-						// 如果返回结果为null且未达到最大重试次数，等待500ms后重试
-						if (!checkResult && this.retryCount < 2) {
-							this.retryCount++;
-							console.log(`API返回null，将在500ms后重试(${this.retryCount}/2)...`);
-							await new Promise(resolve => setTimeout(resolve, 500));
-						} else {
-							break;
-						}
-					}
-					
-					// 检查返回结果是否有效
-					if (!checkResult) {
-						console.error('API返回结果无效，已达到最大重试次数');
-						toast.error('应用安装权限验证失败，安装已取消');
-						return;
-					}
-					
-					// 检查应用是否可安装
-					console.log('应用可安装?', checkResult.installable);
-					console.log('required_plan_level:', checkResult.required_plan_level);
-					console.log('current_plan_level:', checkResult.current_plan_level);
-					
-					// 如果结果显示不可安装，显示错误信息并退出
-					if (checkResult.installable !== true) {
-						console.log('应用不可安装，显示错误信息');
-						
-						const subscriptionTypeMap = {
-							2: 'Pro',
-							3: 'Business',
-							4: 'Enterprise', 
-							5: 'Ultimate'
-						};
-						
-						const requiredPlan = subscriptionTypeMap[checkResult.required_plan_level] || 
-							`Level ${checkResult.required_plan_level}`;
-						
-						toast.error(`无法安装此应用，需要${requiredPlan}或更高级别的站点计划。请先升级您的站点计划。`);
-						return;
-					}
-					
-					// 如果可安装，执行安装
-					console.log('应用可安装，开始安装流程');
-					await toast.promise(
-						this.$site.installApp.submit({ 
-							app: row.app 
-						}),
-						{
-							loading: '正在创建安装任务...',
-							success: jobId => {
-								console.log('安装任务创建成功，jobId:', jobId);
-								this.$emit('installed');
-								this.show = false;
-								
-								try {
-									if (jobId) {
-										router.push({
-											name: 'Site Job',
-											params: {
-												name: this.site,
-												id: String(jobId)
-											}
-										}).catch(err => {
-											console.error('导航到作业页面失败:', err);
-										});
-									}
-								} catch (err) {
-									console.error('处理作业ID时出错:', err);
-								}
-								
-								return '应用安装任务已创建';
-							},
-							error: e => {
-								console.error('安装过程中出错:', e);
-								return getToastErrorMessage(e);
-							}
-						}
-					);
-					
-				} catch (error) {
-					console.error('检查应用安装权限失败:', error);
-					toast.error('无法验证安装权限，安装已取消');
-				}
-			};
-
-			return {
-				label: '应用',
-				fieldname: 'app',
-				fieldtype: 'ListSelection',
-				emptyStateMessage:
-					'未找到应用' +
-					(!this.$site.pg?.group_public
-						? '。请从您的工作台添加它们。'
-						: ''),
-				columns: [
-					{
-						label: '标题',
-						fieldname: 'title',
-						class: 'font-medium',
-						width: 2,
-						format: (value, row) => value || row.app_title
-					},
-					{
-						label: '仓库',
-						fieldname: 'repository_owner',
-						class: 'text-gray-600',
-						width: '10rem'
-					},
-					{
-						label: '版本',
-						fieldname: 'branch',
-						class: 'text-gray-600',
-						width: '20rem'
-					},
-					{
-						label: '',
-						fieldname: '',
-						align: 'right',
-						type: 'Button',
-						width: '5rem',
-						Button({ row }) {
-							return {
-								label: '安装',
-								onClick: () => {
-									handleInstall(row);
-								}
-							};
-						}
-					}
-				],
-				resource: () => {
-					return {
-						url: 'jcloud.api.site.available_apps',
-						params: {
-							name: this.site
-						},
-						auto: true
-					};
-				}
-			};
-		}
-	}
-};
+<template>
+	<Dialog
+		v-model="show"
+		:options="{
+			title: '在您的站点上安装应用',
+			size: '4xl'
+		}"
+	>
+		<template #body-content>
+			<ObjectList :options="listOptions" />
+		</template>
+	</Dialog>
+</template>
+
+<script>
+import { getCachedDocumentResource, createResource } from 'jingrow-ui';
+import { defineAsyncComponent, h } from 'vue';
+import { toast } from 'vue-sonner';
+import { renderDialog } from '../../utils/components';
+import router from '../../router';
+import ObjectList from '../ObjectList.vue';
+import { getToastErrorMessage } from '../../utils/toast';
+
+export default {
+	props: {
+		site: {
+			type: String,
+			required: true
+		}
+	},
+	emits: ['installed'],
+	components: {
+		ObjectList
+	},
+	data() {
+		return {
+			show: true,
+			installPending: false
+		};
+	},
+	computed: {
+		$site() {
+			return getCachedDocumentResource('Site', this.site);
+		},
+		listOptions() {
+			const handleInstall = async row => {
+				// 防止重复点击或正在处理中
+				if (this.$site.installApp.loading || this.installPending) return;
+				
+				// 确保有有效的app
+				if (!row || !row.app) {
+					toast.error('无效的应用信息');
+					return;
+				}
+				
+				// 标记为处理中，防止重复点击
+				this.installPending = true;
+				
+				try {
+					// 直接创建一个资源进行应用安装权限检查
+					const checkResource = createResource({
+						url: 'jcloud.api.site.check_app_installable',
+						params: {
+							name: this.site,
+							app: row.app
+						},
+						auto: true
+					});
+					
+					// 等待资源加载完成
+					await new Promise(resolve => {
+						const unwatch = this.$watch(
+							() => !checkResource.loading,
+							isNotLoading => {
+								if (isNotLoading) {
+									unwatch();
+									resolve();
+								}
+							},
+							{ immediate: true }
+						);
+					});
+					
+					// 获取检查结果
+					const checkResult = checkResource.data;
+					
+					// 如果API返回错误或结果无效，取消安装
+					if (!checkResult) {
+						toast.error('应用安装权限验证失败，安装已取消');
+						this.installPending = false;
+						return;
+					}
+					
+					// 如果应用不可安装，显示对应提示
+					if (!checkResult.installable) {
+						const subscriptionTypeMap = {
+							2: 'Pro',
+							3: 'Business',
+							4: 'Enterprise', 
+							5: 'Ultimate'
+						};
+						
+						const requiredPlan = subscriptionTypeMap[checkResult.required_plan_level] || 
+							`Level ${checkResult.required_plan_level}`;
+						
+						toast.error(`无法安装此应用，需要${requiredPlan}或更高级别的站点计划。请先升级您的站点计划。`);
+						this.installPending = false;
+						return;
+					}
+					
+					// 应用可安装，执行安装流程
+					await toast.promise(
+						this.$site.installApp.submit({ app: row.app })
+							.then(jobId => {
+								this.$emit('installed');
+								this.show = false;
+								return jobId;
+							}),
+						{
+							loading: '正在创建安装任务...',
+							success: () => '应用安装任务已创建',
+							error: e => {
+								// 尝试从错误对象中提取消息
+								const errorMessage = e?.message || e?.messages?.[0] || e?.exc_info?.exception || '安装任务创建失败';
+								
+								// 返回用户友好的错误消息
+								return typeof errorMessage === 'string' ? errorMessage : '安装任务创建失败，请稍后重试';
+							}
+						}
+					);
+					
+				} catch (error) {
+					toast.error('无法验证安装权限，安装已取消');
+				} finally {
+					// 无论成功失败，都清除处理标记
+					this.installPending = false;
+				}
+			};
+			
+			return {
+				label: '应用',
+				fieldname: 'app',
+				fieldtype: 'ListSelection',
+				emptyStateMessage:
+					'未找到应用' +
+					(!this.$site.pg?.group_public
+						? '。请从您的工作台添加它们。'
+						: ''),
+				columns: [
+					{
+						label: '标题',
+						fieldname: 'title',
+						class: 'font-medium',
+						width: 2,
+						format: (value, row) => value || row.app_title
+					},
+					{
+						label: '仓库',
+						fieldname: 'repository_owner',
+						class: 'text-gray-600',
+						width: '10rem'
+					},
+					{
+						label: '版本',
+						fieldname: 'branch',
+						class: 'text-gray-600',
+						width: '20rem'
+					},
+					{
+						label: '',
+						fieldname: '',
+						align: 'right',
+						type: 'Button',
+						width: '5rem',
+						Button: function({ row }) {
+							return {
+								label: '安装',
+								onClick: () => handleInstall(row)
+							};
+						}
+					}
+				],
+				resource: () => {
+					return {
+						url: 'jcloud.api.site.available_apps',
+						params: {
+							name: this.site
+						},
+						auto: true
+					};
+				}
+			};
+		}
+	}
+};
 </script>
\ No newline at end of file
diff --git a/jcloud/api/site.py b/jcloud/api/site.py
index 95246a3..68a5e35 100644
--- a/jcloud/api/site.py
+++ b/jcloud/api/site.py
@@ -2428,62 +2428,24 @@ def check_app_installable(name, app):
 				"current_plan_level": 1-5,   # 当前站点计划等级
 			}
 	"""
-	try:
-		print(f"check_app_installable被调用: name={name}, app={app}")
-		
-		site = jingrow.get_pg("Site", name)
-		print(f"获取到站点: {site.name}, plan={site.plan}")
-		
-		# 获取应用的subscription_level
-		app_subscription_level = jingrow.db.get_value(
-			"Marketplace App", app, "subscription_level")
-		print(f"应用{app}的subscription_level={app_subscription_level}")
-		
-		# 确保subscription_level是有效值
-		if app_subscription_level is None or app_subscription_level == "":
-			app_subscription_level = 1
-			print(f"应用{app}的subscription_level为空，使用默认值1")
-		else:
-			try:
-				app_subscription_level = int(app_subscription_level)
-				print(f"应用{app}的subscription_level转换为整数: {app_subscription_level}")
-			except (ValueError, TypeError) as e:
-				print(f"转换subscription_level出错: {e}, 使用默认值1")
-				app_subscription_level = 1
-		
-		# 获取站点的plan_level
-		site_plan_level = 1
-		if site.plan:
-			plan_level = jingrow.db.get_value(
-				"Site Plan", site.plan, "plan_level")
-			print(f"站点plan={site.plan}, plan_level={plan_level}")
-			
-			if plan_level is not None and plan_level != "":
-				try:
-					site_plan_level = int(plan_level)
-					print(f"站点plan_level转换为整数: {site_plan_level}")
-				except (ValueError, TypeError) as e:
-					print(f"转换plan_level出错: {e}, 使用默认值1")
-		else:
-			print(f"站点没有plan信息，使用默认plan_level=1")
-		
-		installable = site_plan_level >= app_subscription_level
-		print(f"安装条件判断: {site_plan_level} >= {app_subscription_level} = {installable}")
-		
-		result = {
-			"installable": installable,
-			"required_plan_level": app_subscription_level,
-			"current_plan_level": site_plan_level
-		}
-		print(f"返回结果: {result}")
-		return result
-		
-	except Exception as e:
-		print(f"check_app_installable出现异常: {e}")
-		# 发生异常时返回默认值，确保前端收到有效响应
-		return {
-			"installable": False,
-			"required_plan_level": 1,
-			"current_plan_level": 1,
-			"error": str(e)
-		}
+	site = jingrow.get_pg("Site", name)
+	
+	# 获取应用的subscription_level
+	app_subscription_level = jingrow.db.get_value(
+		"Marketplace App", app, "subscription_level") or "1"
+	app_subscription_level = int(app_subscription_level)
+	
+	# 获取站点的plan_level
+	site_plan_level = 1
+	if site.plan:
+		site_plan_level = jingrow.db.get_value(
+			"Site Plan", site.plan, "plan_level") or "1"
+		site_plan_level = int(site_plan_level)
+	
+	installable = site_plan_level >= app_subscription_level
+	
+	return {
+		"installable": installable,
+		"required_plan_level": app_subscription_level,
+		"current_plan_level": site_plan_level
+	}