I've got some custom programmers defined that I use to network flash some embedded devices. I used them a lot with Visual Micro a while back but things broke a while back and I never looked into it until today. It was due to the Arduino 1.5 changes to how they laid out their directory structure so I have updated my custom configs to the new formats and it works great in Arduino 1.8.0 as a custom programmer. However, in Visual Micro it fails

Uploading 'heatermeter' to 'Arduino/Genuino Uno' using 'wwwdude'
Uploader started for board Arduino/Genuino Uno
Uploader will use programmer name: wwwdude
Error during upload using programmer
Index was outside the bounds of the array.

Index was outside the bounds of the array.
The uploader returned an error
 

I assume VMicro is trying to do some sort of parameter replacement on the upload line, but my uploader doesn't have the parameter it is looking for so it bombs out? I have tried adding all sorts of bits and extra lines to my config files (pattern, path, etc), swapping slash directions, but because the error message doesn't say what it is looking for, I am trying to troubleshoot it blind.

Here are my files from Arduino/hardware/capnbry/avr/platform.txt

name=CapnBry AVR Boards
version=1.0

o\WWW avrdude.bat
tools.wwwdude.program.pattern="{cmd.path}" {build.path}\{build.project_name}.hex
tools.wwwdude.program.params.quiet=
tools.wwwdude.program.params.verbose=
 

Arduino/hardware/capnbry/avr/programmers.txt

wwwdude.name=WWW avrdude
wwwdude.program.tool=wwwdude
 

And Arduino/hardware/capnbry/avr/boards.txt is present but blank. What is VMicro requiring that the Arduino IDE doesn't for uploading using a custom programmer?

Hi Tim! Thanks for responding and sorry I haven't gotten back to you-- I just lose track of time!

That's the entirety of my hardware directory structure and complete contents of the files listed above. I can provide a zip with them as well as the verbose output you requested but I don't remember your email address.

Adding the board.txt did make it work. Comparing the two build properties, I see that the one that does not work doesn't have my wwwdude tool listed at all in the properties, and the one that works does have it (all the lines of the board.txt are present). Without the board.txt (and reloading the toolchain / IDE) I still have "WWW avrdude" listed in my programmers, so somehow it is showing up there but there is none of the information in the build properties dump.

Oh I guess that was a bit ambiguous, my custom hardware is in my user profile's documents\Arduino folder (Ye olde "My Documents"), not in the Arduino IDE tree.

I've uploaded the files to my webserver here if that helps. The hardware.zip is starting from Documents\Arduino. Thanks for looking into it, it seems I am always the guy coming here with broken hardware folders   

Resolved in latest release.

Thanks for the post.