我正在尝试将我的kafka主题数据推送到带有nordstrom lambda sink connector的aws lambda函数中，在将aws凭证设置为环境变量之后，连接器仍然显示以下错误
将aws\u access\u key\u id、aws\u secret\u access\u key值导出为

export AWS_ACCESS_KEY_ID=XXXXXXXXXX 
export AWS_SECRET_ACCESS_KEY=XXXXXXXXXXXXXXXXXX

my connector.json配置：

{
    "name": "example-lambda-connector",
    "config": {
      "tasks.max": "1",
      "connector.class": "com.nordstrom.kafka.connect.lambda.LambdaSinkConnector",
      "topics": "example-stream",
      "key.converter": "org.apache.kafka.connect.storage.StringConverter",
      "value.converter": "org.apache.kafka.connect.storage.StringConverter",
      "aws.region": "ap-south-1",
      "aws.lambda.function.arn": "arn:aws:lambda:ap-south-1:111111111:function:example-function",
      "aws.lambda.invocation.timeout.ms": "60000",
      "aws.lambda.invocation.mode": "SYNC",
      "aws.lambda.batch.enabled": "false"
      }
     }

获取以下错误：
原因：java.util.concurrent.executionexception:com.amazonaws.sdkclientexception:无法从链中的任何提供程序加载aws凭据：[environmentvariablecredentialsprovider:无法从环境变量（aws\ U access\ U key\ id（或aws\ U access\ U key）和aws\ U secret\ U key（或aws\ U secret\ U access\ U key））加载aws凭据，systempropertiescredentialsprovider:无法从java系统属性（aws.accesskeyid和aws.secretkey）、com.amazonaws.auth.profile加载aws凭据。profilecredentialsprovider@503af16e：配置文件不能为null，webidentitytokencredentialsprovider:必须为rolearn和rolesessionname指定一个值，亚马逊网站。ec2containercredentialsproviderwrapper@76a59f2c：在中找不到请求的元数据http://169.254.169.254/latest/meta-data/iam/security-credentials/]