netlogo中的导出函数会产生错误消息

Question

我运行以下代码以在Netlogo 6.0模拟期间导出Essentials，以便为数据输出创建文件组织结构：

export-output (word "levy-output" date-and-time ".csv")
export-world (word "levy-input" date-and-time ".csv")
export-interface (word "levy-interface" date-and-time ".csv")
export-all-plots (word "levy-plots " date-and-time ".csv")

我分别收到以下错误消息：

error (IllegalStateException)
 while observer running EXPORT-OUTPUT
  called by procedure CORRELATED-RANDOM-WALK
  called by Button 'Correlated-Random-Walk'

export-world: java.io.IOException: The filename, directory name, or volume label syntax is incorrect
error while observer running EXPORT-WORLD
  called by procedure CORRELATED-RANDOM-WALK
  called by Button 'Correlated-Random-Walk'

error (IllegalStateException)
 while observer running EXPORT-INTERFACE
  called by procedure CORRELATED-RANDOM-WALK
  called by Button 'Correlated-Random-Walk'

error (IllegalStateException)
 while observer running EXPORT-ALL-PLOTS
  called by procedure CORRELATED-RANDOM-WALK
  called by Button 'Correlated-Random-Walk'

我使用的语法有问题吗？