'An AWS Serverless Application that uses the ASP.NET Core framework running in Amazon Lambda

I am very new to AWS. While Publish my code to Aws Serverless Lambda API. After processing of 100% it gives error of

Found existing stack: True
The stack's current state of UPDATE_ROLLBACK_FAILED is invalid for updating
Failed to publish AWS Serverless application

and on server when checked on the server it shows

Description : An AWS Serverless Application that uses the ASP.NET Core framework running in Amazon Lambda.
Status Reason: The following resource(s) failed to update: [AspNetCoreFunctionRole].
Status : UPDATE_ROLLBACK_FAILED

Don't know what to check, where to check. I think some error of dot net version, these are the dot net related apps installed in my system. enter image description here

c++sharp.net-coreaws-lambdaaws-serverless


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