Keeping throw InvalidParameterException when cloudwatch client send the CreateExportTaskCommand

[jzhang777]

Hi, The following is my code:
const logGroup = "xxxxxxx-logs";
const bucketName = "xxxxx-logs"; // replace with your bucket name
const s3Prefix = 'exportedlogs'
const oneDayAgo = new Date('2024-07-26T17:32:20').getTime();
const oneDay = new Date('2024-07-28T20:11:00').getTime();
let params = {
taskName: "export-logs-task",
logGroupName: logGroup,
from: Number(oneDayAgo),
to: Number(oneDay),
destination: bucketName,
destinationPrefix: s3Prefix,
};
try {
const exportLogsClient = new CloudWatchLogsClient({ region: 'us-east-1' });
const command = new CreateExportTaskCommand(params);
const data = await exportLogsClient.send(command);
} catch (error) {
console.error("$$ Error", JSON.stringify(error));
}

When I test the lambda in AWS console. it always throw the InvalidParameterException. The params set correctly and the cloudwatch logs and s3 role policy are correct too.
Error msg:

2024-08-13T20:52:04.249Z a2683f0d-a290-46c9-975f-13c2f15b1cd4 ERROR $$ Error
{
"name": "InvalidParameterException",
"$fault": "client",
"$metadata": {
"httpStatusCode": 400,
"requestId": "f5428eb4-0a7e-48c5-a49f-b320647854e0",
"attempts": 1,
"totalRetryDelay": 0
},
"__type": "InvalidParameterException"
}

Need help to know what is the deep reason to cause the InvalidParameterException when we call the CreateExportTaskCommand?

Thanks,