Opening Files in older versions of Eagle

[Anonymous]

Since the most recent updates of Eagle is having issues with printing and scaling factors of a 1:1.  I have tried opening a file I created in a more recent update, in version 8.0.2 of Autodesk Eagle.  Unfortunately, I am not able to open it as is showing some errors.  How can I resolve this?

[rachaelATWH4]

You can export in a v7 compatible format (which will also work for v8.0.2) by using the File->"Save Copy for EAGLE 7.x..." option.

Best Regards,

Rachael

[david.mellis]

BTW, in this case it looks like the issue is that the design contains parts from two libraries named "pinhead" (i.e. either a managed library and a unmanaged library, or two different managed libraries). You may be able to solve it by replacing the parts from the unmanaged library with the corresponding parts from the managed library (or vice-versa). 

In general, designs using managed libraries should open in previous versions of EAGLE, with some warnings that some attributes are being ignored. The error only happens in the case where you've got a mix of two libraries with the same name (since previous EAGLE versions use only the name, not the URN, to identify the library).

[Anonymous]

Thank you for this explanation.  How can I determine which libraries are managed and which are unmanaged?  Would it help if I combine all of the libraries into one location?  Such as what's shown in this thread https://forums.autodesk.com/t5/eagle-forum/switch-from-unmanaged-to-managed-libraries/td-p/7641836   "Switch from unmanaged to managed libraries" using the ULP script command?

[david.mellis · Accepted solution]

In the properties dialog for a part/element, if there's a "(Version N)" next to the library name, that part is from a managed library. (If you wanted to try to script this, you can check the id property of the UL_LIBRARY object.)

From your original message, it looks like this conflict is happening for the pinhead library. Rather than using the export library ULP, I suggest checking these individually and using the replace command to update them. The pinhead library that currently ships with EAGLE is a managed one, so you may want to replace the unmanaged pinhead parts in your design with their managed equivalents.