On compile: "Coff file format for 'ifi_library.o' is out of date."
 

I read this:
http://www.chiefdelphi.com/forums/sh...=ifi_library.o

Though they get the same error it does not seem to address my issue. When ever I try to compile I get this error:
I am using versions:

• MPLAB IDE v7.30
• MPLAB c18 v3.02

I am sorry if this is answered in the post above but I did not understand it if it did. As you may guess I am not a programer myself, I am setting up the laptop for the porgraming team for regionals.

These are all apps that I have downloaded of the net, so maybe I need something that FIRST gave me, though I am not sure.

Any help is appreciated.

Re: On compile: "Coff file format for 'ifi_library.o' is out of date."
 

You should be using:

MPLab v7.2
C18 v2.4

Newer version aren't supported.

Re: On compile: "Coff file format for 'ifi_library.o' is out of date."
 

I will just note that MPLab v7.21 has not given me any problems. It really doesn't add any functionality, but it's what I have been using.

Re: On compile: "Coff file format for 'ifi_library.o' is out of date."
 

The big problem is the compiler, it uses a different binary format for the compiled files in the 3.0 version, whereas the IFI precompiled libraries are built in the old format, so they're not compatible. I don't see why they couldn't include backwards compatibility, it's not a huge issue but I like to be up to date.

Re: On compile: "Coff file format for 'ifi_library.o' is out of date."
 

There's more than that..

Re: On compile: "Coff file format for 'ifi_library.o' is out of date."
 

My problem is our team is limited on the computers we have to develop software. I am one of the mentors and bring my laptop from work in for our team to use in the evenings. For work I use the MPLAB IDE v7.31 and the MPLAB c18 v3.06. The only way to use the current IFI/USFirst library is to unload my office version of MPLAB/C18 and reload the older software.

Can IFI/USFirst build a library for those users that have the new Microchip MPLAB.

David Barr
Mentor (Programming)
Team 141 WOBOT West Ottawa High School

Re: On compile: "Coff file format for 'ifi_library.o' is out of date."
 

I dont think they will. I havent tried but it might be possible to have 2 folders. One for each version of c18 and run MPlab and change the default folder it looks for the files in. I havent tried this though.

Re: On compile: "Coff file format for 'ifi_library.o' is out of date."
 

would it work to create another account (probably administrator) and instal the robotics stuff there?

Re: On compile: "Coff file format for 'ifi_library.o' is out of date."
 

Matt,

The issue is a PIC issue and not an IFI issue...

From the readme file of C18 compiler V3.00:
This change was required for support of new products introduced by Microchip a few years ago.

I had hoped that IFI would offer recompiled libraries but they have not. I would guess it might have something to do with over 1300 teams getting free C18 compiler software from Microchip.

Regards,

Mike

Re: On compile: "Coff file format for 'ifi_library.o' is out of date."
 

From my store of "usefull things to remember".

I once read that the MPLAB compiler cannot handle the linking of files whose source path exceeds 62 characters. (Didn't count the length of your path)

But almost anything in the C:\... user ... docs folder stream if you've organized it would be banging hard on the limits.

Simple solution == move your source directory closer to C:\

ie c:\FirstCode\XYZ

Re: On compile: "Coff file format for 'ifi_library.o' is out of date."
 

...just a heads up that this thread was originally posted during the 2006 season -- so the applicability of some or all of this information may (or may not) have changed.

Re: On compile: "Coff file format for 'ifi_library.o' is out of date."
 

The initial thread issue remains the same today re path length.

the other issues also remain as far as using MPLab v7.2 and C18 v2.4.

The decisions about library updates are what they are though.