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error message when replacing parts

rickford66

I have some parts on a sch/pcb that I need to replace with updated parts from the library.  I get the follow error message...

 

"Consistency lost during update!  No forward/backannotation will be performed!  Please contact CadSoft!"

 

followed by...

 

"The library update has failed!  Your drawing may be seriously damaged.  Please revert to a backup!"

 

I then close everything without saving, re-open and try again, but it keeps giving the same message.  Any ideas what's going on here?

Thanks.

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  • in reply to robotonics

    On 2/3/2012 4:58 PM, David Cotterill-Drew wrote:

    Yes, this is a really annoying problem. I usually have to delete the .brd file from the project and then allow the schematic to create a new board. Problem being that I lose time, especially if I have got the layout close to completion.

     

     

    That's a bit overkill David,

     

    What's happening is that EAGLE replaces the component but doesn't

    reconnect the nets. Running the ERC will tell you where the consistency

    issues arise so that you can correct them manually, and that's a lot

    less work then starting the layout over generally.

     

    In some cases just moving the component and putting it back on the net

    connections takes care of the problem. Other times you can just add

    junction dots where the nets meet the part.

     

    hth,

    Jorge Garcia