这个问题可能是由于AWS Secrets Manager中没有指定密码导致的。为了解决这个问题，您可以使用以下代码示例中的步骤：

1. 在AWS控制台上创建一个新的密码并将其存储在Secrets Manager中。

2. 使用以下代码获取密码：

import boto3
from botocore.exceptions import ClientError

def get_secret():
    secret_name = "my_secret_name"
    region_name = "my_region_name"

    # Create a Secrets Manager client
    session = boto3.session.Session()
    client = session.client(
        service_name='secretsmanager',
        region_name=region_name
    )

    # Get the secret value
    try:
        response = client.get_secret_value(SecretId=secret_name)
    except ClientError as e:
        if e.response['Error']['Code'] == 'ResourceNotFoundException':
            print("The requested secret " + secret_name + " was not found")
        elif e.response['Error']['Code'] == 'InvalidRequestException':
            print("The request was invalid due to:", e)
        elif e.response['Error']['Code'] == 'InvalidParameterException':
            print("The request had invalid params:", e)
    else:
        # Decrypts secret using the associated KMS CMK.
        # Depending on whether the secret is a string or binary, one of these fields will be populated.
        if 'SecretString' in response:
            secret = response['SecretString']
        else:
            secret = base64.b64decode(response['SecretBinary'])
        return secret

3. 在您的应用程序中使用此密码。

请注意，此示例假定您已经安装了AWS SDK for Python (Boto3)。