从Visual Studio发布Azure云服务（扩展支持）失败：slotType属性不存在

问题详情 #

从Visual Studio发布Azure Cloud Services (extended support)实例时失败，报错详情如下：

22:25:06 - Uploading 'E:\Projects\MyCloudService\bin\Release\app.publish\MyCloudService.cspkg' as 'MyCloudService-3b0df582.cspkg' to storage account...
22:25:44 - Uploading 'E:\Projects\MyCloudService\bin\Release\app.publish\ServiceConfiguration.Cloud.cscfg' as 'ServiceConfiguration.Cloud-3b0df582.cscfg' to storage account...
22:25:44 - Checking if all the certificates exist in key vault 'https://mykeyvault.vault.azure.net/'...
22:25:46 - Preparing deployment for MyCloudService_2023-07-16T222446 with Subscription ID '...' using Resource Management URL 'https://management.azure.com/'...
22:25:46 - Starting...
22:26:12 - Deployment Status: Failed.
22:26:12 - The deployment through Azure Resource Management failed.
Code: DeploymentFailed
Message: At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/arm-deployment-operations for usage details.
Detail: Unable to process template language expressions for resource '<resource ID>' at line '1' and column '8784'. 'The language expression property 'slotType' doesn't exist, available properties are 'loadBalancerConfigurations, swappableCloudService'.'

已尝试的解决方案 #

• 处理发布配置中的<AzureSlot>节点：移除自动添加的<AzureSlot>Production</AzureSlot>，或修改为<AzureSlot>Staging</AzureSlot>，均未解决问题
• 发现bin\Release目录下生成的部署模板和参数文件中存在slotType引用，但这类文件每次发布都会被重新生成，手动修改无法持久生效
• 新建发布配置文件，问题依然存在
• 尝试发布今年4月初成功部署过的旧代码版本，同样触发相同错误

怀疑原因及进展 #

推测是Visual Studio更新导致ARM模板生成逻辑异常，已将问题提交至微软开发者社区，寻求进一步解决思路。

内容的提问来源于stack exchange，提问作者Piedone