Jenkins声明性管道中的Groovy错误

我已经在Docker上安装了Jenkins,并从SCM创建了一个声明性管道。jenkins文件放在Github上,具有以下代码:

pipeline {
    agent any

    stages {
        stage('Build') {
            steps {
                echo 'Building..'
            }
        }
        stage('Test') {
            steps {
                echo 'Testing..'
            }
        }
        stage('Deploy') {
            steps {
                echo 'Deploying....'
            }
        }
    }
}

 Running in Durability level: MAX_SURVIVABILITY
    [Pipeline] End of Pipeline
    groovy.lang.MissingPropertyException: No such property: pipeline for class: groovy.lang.Binding
        at groovy.lang.Binding.getVariable(Binding.java:63)
 jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:59)
    Finished: FAILURE

当我将Jenkinsfile中的代码直接放到Github上的Jenkins时,它就成功地构建了。不知道是什么问题,虽然同样的事情已经工作了早些时候(我已经安装了新的码头詹金斯)