Personalize Service .Net Client

This error typically occurs when the AWS SDK is trying to retrieve credentials from the EC2 Instance Metadata Service, but it cannot find the required credentials. However, when you explicitly provide the Access Key and Secret Access Key, the SDK should use those credentials instead of trying to retrieve them from the Instance Metadata Service.

Here are a few potential reasons why you might still be getting this error, even when providing the Access Key and Secret Access Key directly:

1. Incorrect Credentials: Double-check that you are using the correct Access Key and Secret Access Key. Make sure there are no typos or extra spaces in the credentials.

2. SDK Version: There might be a bug or compatibility issue with the version of the AWS SDK for .NET that you are using. Try updating to the latest version of the SDK and see if the issue persists.

3. Other SDK Configuration: Check if there are any other configurations or settings in your application that might be overriding or conflicting with the provided credentials.

Environment Variables: The AWS SDK for .NET looks for AWS credentials in environment variables by default. If you have set AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environment variables, they might be taking precedence over the credentials you're providing in your code. Double-check and unset these environment variables if they exist.

AWS Credential Files: The SDK also looks for credentials in the AWS credential file (~/.aws/credentials on Unix/Linux or %USERPROFILE%\.aws\credentials on Windows). If you have credentials stored in these files, they might be overriding the ones you're providing in your code.

Shared AWS Credential File: Similar to the AWS credential file, the SDK also checks for credentials in the shared AWS credential file (~/.aws/config on Unix/Linux or %USERPROFILE%\.aws\config on Windows). Ensure that there are no conflicting credentials in this file.

AWS Config Settings: The SDK reads configuration settings from the AWS config file (~/.aws/config on Unix/Linux or %USERPROFILE%\.aws\config on Windows). Check if there are any custom configurations related to credential providers or authentication that might be interfering with your code.

AWS Credential Providers: The AWS SDK for .NET supports multiple credential providers, such as environment variables, credential files, EC2 Instance Metadata Service, and more. By default, it uses a credential provider chain to search for credentials in a specific order. If you have any custom credential providers configured, they might be causing conflicts.