I preparing script in Jenkins as below where I getting error while build job. This job is send email to user for input for next step.

 [Pipeline] End of Pipeline
 java.lang.UnsupportedOperationException: no known implementation of class jenkins.tasks.SimpleBuildWrapper is named BuildUser
    at org.jenkinsci.plugins.structs.describable.DescribableModel.resolveClass(DescribableModel.java:549)
    at org.jenkinsci.plugins.structs.describable.DescribableModel.coerce(DescribableModel.java:473)

Version :

$ java --version
 openjdk 11.0.11 2021-04-20

jenkins : 2.277.3

Pipeline code:

def user
node {
wrap([$class: 'BuildUser']) {
user = env.BUILD_USER_ID

emailext mimeType: 'text/html',
             subject: "[Jenkins]${currentBuild.fullDisplayName}",
             to: "user@xxx.com",
             body: '''<a href="${BUILD_URL}input">click to approve</a>'''

pipeline {
agent any
stages {
    stage('deploy') {
        input {
            message "Should we continue?"
            ok "Yes"
        when {
            expression { user == 'hardCodeApproverJenkinsId'}
        steps {
            sh "echo 'describe your deployment' "

Can anyone please review this, please ?


Have you installed the Build User Vars Plugin? This plugin provides the "BuildUser" class.

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