minimal dxf R13

所以。。。根据这个网页，我创建了一个空的dxf文件，它起作用了，但一旦我包含了一个MText实体，autocad就会抛出以下错误

GroupTable dictionary was not defined in NamedObject dictionary
Invalid or incomplete DXF input -- drawing discarded.

所以我的问题是：
1-我可以信任该页面吗？该页面上的信息正确吗
2-对象部分中需要的最后一个实体是什么
3-我做错了什么？

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{'fArial|b0|i0|c178|p34;'U+FE90'U+FEB4'U+FB7C'U+FEAE'U+FE91}
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EOF

我从另一个文件中复制了除句柄外的所有数字，我应该自己插入所有数字吗？如果是，我可以使用最小值还是最大值
如果还有什么需要解释的，请告诉我

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