最近在画一个PCB图，用层次图画的！
可以源理图画完了，在导入到PCB时，出现在。unmatched reference objects等问题。
自己改封装弄这弄那弄了半天还是没有弄出来。
今天，在无意中看到了一文章，终于弄好了。。
解决方法如下：
The message shows you the difference
between PCB and SCH.
The ”unmatched Reference Objects” column is the
nets list from SCH. The “unmatched Target Objects” column is the nets
list from PCB.
I believe you already have a PCB file in your project.
The nets in PCB file (e.g. netC17_2,.. exist in PCB) are not appear in
SCH.
If you have no idea what the nets and components are, open the
PCB file and find them out, then you can match the nets manually. You
can also click “NO” in the first message window, the software will match
the nets for you automatically.
Another way (simple, but only for
first time PCB update) is remove the PCB file from the project, create a
new PCB and add it into the project.
I found the Protel help is
helpless (sorry Altium), you can try to type the key words in search tab。
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