Hi,I learned from the Tutorials chapter "Build a Java app with Maven", I've followed the tutorials, but when I run it, I report this error.
java.lang.NoSuchMethodError:` No such DSL method 'agent' found among steps [archive, bat, build, catchError, checkout, deleteDir, dir, dockerFingerprintFrom, dockerFingerprintRun, echo, envVarsForTool, error, fileExists, getContext, git, input, isUnix, jiraComment, jiraIssueSelector, jiraSearch, junit, library, libraryResource, load, mail, milestone, node, parallel, powershell, properties, publishHTML, pwd, readFile, readTrusted, resolveScm, retry, script, sh, sleep, stage, stash, step, svn, timeout, tm, tool, unarchive, unstash, validateDeclarativePipeline, waitUntil, withContext, withCredentials, withDockerContainer, withDockerRegistry, withDockerServer, withEnv, wrap, writeFile, ws] or symbols [all, allOf, always, any, anyOf, apiToken, architecture, archiveArtifacts, artifactManager, authorizationMatrix, batchFile, bitbucket, booleanParam, branch, buildButton, buildDiscarder, caseInsensitive, caseSensitive, certificate, changelog, changeset, checkoutToSubdirectory, choice, choiceParam, clock, cloud, command, credentials, cron, crumb, defaultView, demand, disableConcurrentBuilds, disableResume, docker, dockerCert, dockerfile, downloadSettings, downstream, dumb, durabilityHint, envVars, environment, expression, file, fileParam, filePath, fingerprint, frameOptions, freeStyle, freeStyleJob, fromScm, fromSource, git, github, githubPush, headRegexFilter, headWildcardFilter, hyperlink, hyperlinkToModels, inheriting, inheritingGlobal, installSource, jdk, jdkInstaller, jgit, jgitapache, jnlp, jobName, label, lastDuration, lastFailure, lastGrantedAuthorities, lastStable, lastSuccess, legacy, legacySCM, list, local, location, logRotator, loggedInUsersCanDoAnything, masterBuild, maven, maven3Mojos, mavenErrors, mavenMojos, mavenWarnings, modernSCM, myView, node, nodeProperties, nonInheriting, nonStoredPasswordParam, none, not, overrideIndexTriggers, paneStatus, parameters, password, pattern, pipeline-model, pipelineTriggers, plainText, plugin, pollSCM, projectNamingStrategy, proxy, queueItemAuthenticator, quietPeriod, remotingCLI, run, runParam, schedule, scmRetryCount, search, security, shell, skipDefaultCheckout, skipStagesAfterUnstable, slave, sourceRegexFilter, sourceWildcardFilter, sshUserPrivateKey, stackTrace, standard, status, string, stringParam, swapSpace, text, textParam, tmpSpace, toolLocation, unsecured, upstream, usernameColonPassword, usernamePassword, viewsTabBar, weather, zfs, zip] or globals [currentBuild, docker, env, params, pipeline, scm]