Arduino AVR Boards 1.6.9 and Arduino SAM Boards 1.6.6 incompatible with IDE<1.6.6

[per1234]

Arduino AVR Boards 1.6.9 contains the following recipe:

recipe.ar.pattern="{compiler.path}{compiler.ar.cmd}" {compiler.ar.flags} {compiler.ar.extra_flags} "{archive_file_path}" "{object_file}""

Which is incompatible with any IDE previous to 1.6.6 because of {archive_file_path} needs to be changed to {build.path}/{archive_file}. After updating to Arduino AVR Boards 1.6.9 any compile using these boards causes the error:

avr-gcc: error: C:\Users\per\AppData\Local\Temp\build8524536844090177810.tmp/core.a: No such file or directory

This is a perfect example of why https://github.com/arduino/Arduino/issues/3932 is needed.

[Chris--A]

Maybe this is related: #4110

When the new core downloads, it ends up in the AppData\Local\Arduino15 folder and must override the copy packaged in the install folder.

[per1234]

When the new core downloads, it ends up in the AppData\Local\Arduino15 folder

Using Boards Manager with <=1.6.5 it installs to AppData*Roaming*\Arduino15

[per1234]

But that's Windows only. With OS X or linux I believe 1.6.6 and 1.6.5 use the same arduino15 folder. So if you are using either of those OSs and install Arduino IDE 1.6.6, get the boards update notification, update Arduino AVR Boards to 1.6.9, and then decide you want to go back to Arduino IDE 1.6.5 it seems like installing 1.6.6 broke 1.6.5 even though it was really updating Arduino AVR Boards which could have happened in either version of the IDE. But in #4110 they are using Windows 10 so I don't think that specific scenario is their issue.

[per1234]

Arduino SAM Boards 1.6.6 is also incompatible with Arduino IDEs previous to 1.6.6.
Edit: Arduino SAM Boards 1.6.5 is also incompatible.

[AndKe]

still not fixed in boards v1.6.10 (at least on Linux) 1.6.8 works...

[sandeepmistry]

Now that #4737 is merged newer core releases should not have this issue, there's not much we can do about AVR core 1.6.9 and SAM 1.6.6 so closing.