使用publishHtml插件发布时出错

Question

我正在跟踪在Jenkins管道中发布的代码-

publishHTML([allowMissing: false, alwaysLinkToLastBuild: false, keepAll: false, reportDir: WORKSPACE.replaceAll('\\\\', '/') + '/' + checkoutfoldername.replaceAll('\\\\', '/') + '/target/sonar', reportFiles: 'issues-report67.txt', reportName: 'SonarAnalysisResult' + env.BUILD_NUMBER, reportTitles: ''])

但是当管道运行时，它会导致-

groovy.lang.MissingMethodException: No signature of method: java.lang.String.positive() is applicable for argument types: () values: []

Possible solutions: notify(), size(), size(), tokenize()

请帮助了解这里出了什么问题。