Error showing while deploying custom component into Greengrass core device.(GreengrassV2)

The credential keys are not expired or invalid but it showing error.

(pool-2-thread-19) com.aws.greengrass.tes.CredentialRequestHandler: Error in retrieving AwsCredentials from TES. {iotCredentialsPath=/role-aliases/GreengrassV2TokenExchangeRoleAlias/credentials, credentialData=TES responded with status code: 400. Caching response. {"message":"Unable to assume the role, or the role to assume does not exist"}}