发布AWS无服务器Lambda时出错

Question

我们正在使用AWS Toolkit Visual Studio 2017（“https://aws.amazon.com/blogs/developer/preview-of-the-aws-toolkit-for-visual-studio-2017/”）来创建AWS无服务器lambda。当我们部署这个lambda函数时，我们得到状态：“UPDATE_ROLLBACK_Complete”

这是我们的serverless.template文件：

{
  "AWSTemplateFormatVersion" : "2010-09-09",
  "Transform" : "AWS::Serverless-2016-10-31",
  "Description" : "An AWS Serverless Application that uses the ASP.NET Core framework running in Amazon Lambda.",

  "Parameters" : {
    
  },

  "Conditions" : {
    
  },

  "Resources" : {

  "Get" : {
      "Type" : "AWS::Serverless::Function",
      "Properties": {
        "Handler": "F2C.MAP.API.AWSLambda.IdentityServer::F2C.MAP.API.AWSLambda.IdentityServer.LambdaEntryPoint::FunctionHandlerAsync",
        "Runtime": "dotnetcore2.0",
        "CodeUri": "",
		"FunctionName":"CreateToken",
		"Description":"Create access token based on clientId and client secret",
        "MemorySize": 256,
        "Timeout": 30,
        "Role": null,
        "Policies": [ "AWSLambdaFullAccess" ],
        "Environment" : {
          "Variables" : {
            
          }
        },
		"VpcConfig":{
			"SecurityGroupIds":["sg-123456"],
			"SubnetIds":["subnet-123456"]
		},
        "Events": {
          "PutResource": {
            "Type": "Api",
            "Properties": {
              "Path": "/{proxy+}",
              "Method": "GET"
            }
          }
        }
      }
    }
    
  },

  "Outputs" : {
    
  }
}