aws-sam-cli: sam local start-api invoke lambda unable to access DynamoDB, the error message showed "The security token included in the request is invalid ".

Description

Before sam local version 0.52.0 everything works fine.Sam local environment can request data from cloud dynamodb. After I upgraded my sam local version to 1.0.0. When I debug my code in sam local environment. I got an error

"com.amazonaws.services.dynamodbv2.model.AmazonDynamoDBException: The security token included in the request is invalid (Service: AmazonDynamoDBv2; Status Code: 400; Error Code: UnrecognizedClientException "

I can request data from dynamoDB with Java main function, so I have enough permission to request data from the dynamodb with ~/.aws/credentials (default)

I had test the same project and the same credentials in another PC with sam local 0.18.0, everything is fine.

Steps to reproduce

sam local start-api --host 127.0.0.1 -p 3000 --profile default

Observed result

sam local api start running after I run the command “sam local start-api --host 127.0.0.1 -p 3000 --profile default”. But when lambda need to reqeust data from dynamoDB, There is an error"The security token included in the request is invalid"

Expected result

sam local should get data from cloud dynamoDB.

Additional environment details (Ex: Windows, Mac, Amazon Linux etc)

1. OS: Ubuntu 18.04 LTS
2. sam --version: 1.0.0

sam local start-api --host 127.0.0.1 -p 3000 --profile default