AcPlPlotEngine::beginGenerateGraphics() 返回Acad::eGraphicsNotGenerated的错误

• 在使用objectArx相关接口进行打印pdf时，发现打印出来的pdf是空白的,遂进行调试，结果发现beginGenerateGraphics()返回的结果是Acad::eGraphicsNotGenerated。
• 查询帮助文档，只能知道该返回值代表生成图形时出现问题。
• 随后便在谷歌上查找Acad::eGraphicsNotGenerated,在AutoCAD论坛查到点了东西,但按照上面的操作依旧没有帮助

Issue:

• When plotting or publishing from AutoCAD, the process fails with the Plot and Publish Details showing the
  error:Error: Graphics Not Generated
  Also, the Plot Preview might not work, with the screen just flashing when attempting it.

Causes:

• There is a problem with the layout being plotted.
• There is a problem with the plotting device and/or plotter configuration (PC3) file.