Running in Durability level: MAX_SURVIVABILITY [2023-06-02 14:07:25] org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed: [2023-06-02 14:07:25] WorkflowScript: 26: No steps specified for branch @ line 26, column 13. [2023-06-02 14:07:25] steps { [2023-06-02 14:07:25] ^ [2023-06-02 14:07:25] [2023-06-02 14:07:25] 1 error [2023-06-02 14:07:25] [2023-06-02 14:07:25] at org.codehaus.groovy.control.ErrorCollector.failIfErrors(ErrorCollector.java:310) [2023-06-02 14:07:25] at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1085) [2023-06-02 14:07:25] at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:603) [2023-06-02 14:07:25] at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:581) [2023-06-02 14:07:25] at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:558) [2023-06-02 14:07:25] at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:298) [2023-06-02 14:07:25] at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:268) [2023-06-02 14:07:25] at groovy.lang.GroovyShell.parseClass(GroovyShell.java:688) [2023-06-02 14:07:25] at groovy.lang.GroovyShell.parse(GroovyShell.java:700) [2023-06-02 14:07:25] at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.doParse(CpsGroovyShell.java:142) [2023-06-02 14:07:25] at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.reparse(CpsGroovyShell.java:127) [2023-06-02 14:07:25] at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.parseScript(CpsFlowExecution.java:571) [2023-06-02 14:07:25] at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.start(CpsFlowExecution.java:523) [2023-06-02 14:07:25] at org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:327) [2023-06-02 14:07:25] at hudson.model.ResourceController.execute(ResourceController.java:100) [2023-06-02 14:07:25] at hudson.model.Executor.run(Executor.java:433) [2023-06-02 14:07:25] Finished: FAILURE

这个错误提示是因为您在 Jenkinsfile 中定义了一个分支但是没有指定分支的步骤。

您可以检查一下 Jenkinsfile 的第 26 行，看看有没有漏掉什么内容或者格式错误。如果您想要定义一个空的分支，可以使用一个空的 `steps` 闭包，例如：

pipeline {
    agent any
    stages {
        stage('Build') {
            steps {
                sh 'npm install'
            }
        }
        stage('Test') {
            steps {
                sh 'npm test'
            }
        }
    }
    post {
        always {
            echo 'This will be run no matter what'
        }
        success {
            echo 'This will only run if successful'
        }
        failure {
            echo 'This will only run if failed'
        }
        // Define an empty branch
        branch '' {
            steps {}
        }
    }
}

在上面的示例中，我们定义了一个空的分支，其中 `branch` 指令中的空字符串表示该分支没有名称，`steps` 闭包中没有任何内容。这样就可以避免分支未定义步骤而导致的错误。