Launch with empty parameters failed

[liberchen]

When I try to launch a job with empty parameters, I got below response:

<title>Error 403 No valid crumb was included in the request</title>

HTTP ERROR 403

Problem accessing /job/ICE/build. Reason:

    No valid crumb was included in the request

---

Powered by Jetty://

---

===== Codes:

$job=$jenkins->getJob('ICE');
$builds = $job->getBuilds();
echo "Last Builds:\n";
foreach ($builds as $build) {
/**
*
* @var JenkinsApi\Item\Build $build
*/
echo "Result:" . $build->getResult() . "\n";
echo "Timestamp:" . $build->getTimestamp() . "\n";
}
echo $job->launch();

Results:

Last Builds:
Result:FAILURE
Timestamp:1499054331
Result:SUCCESS
Timestamp:1498065719
Result:SUCCESS
Timestamp:1497838451
Result:SUCCESS
Timestamp:1497836036
Result:FAILURE
Timestamp:1497618011
Result:FAILURE
Timestamp:1497597399

<title>Error 403 No valid crumb was included in the request</title>

HTTP ERROR 403

Problem accessing /job/ICE/build. Reason:

    No valid crumb was included in the request

---

Powered by Jetty://

---