VS Arduino - "Builds" work consistently..."Rebuilds" fail...

May 30^th, 2025 at 7:42pm (UTC)

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VS Arduino › Visual Micro › Installation & Troubleshooting › "Builds" work consistently..."Rebuilds" fail...

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"Builds" work consistently..."Rebuilds" fail... (Read 1775 times)

Richard4562 Junior Member Offline Posts: 21 Joined: Oct 10^th, 2016	"Builds" work consistently..."Rebuilds" fail... Jul 9^th, 2019 at 6:48am	Print Post
	I have a sketch the compiles fine on the arduino IDE. On the Visual Studio Community 2019, I'm seeing the following behaviour on consecutive compiles with no changes to the source program. Consecutive "Builds" always work...one after another..."Build"..."Build"..."Build". "Rebuilds" only work if you proceed them by a "Clean Solution" directive. If you try to do a "Rebuild" after a "Build"...or after a "Clean Solution + Rebuild" (which succeeds)...that second Rebuild will fail. I'll include 2 files: "Successful_Clean_Solution_then_Rebuild.txt". "Failed_Rebuild.txt." The behavior is very consistent on my machine. Since I know how to work around it...it won't take me by surprise. But if it is a generic issue...it may throw users for a loop, as to why things compile...and then they don't. I'm fuzzy on the difference between "Builds" and "Rebuilds"...I just hit one or the other...assuming both will work. Maybe what I'm seeing is expected behaviour...and you are expected to do a "Clean Solution" before "Rebuilds". Windows 7 with latest Updates. Arduino 1.89 Teensyduino 1.46 Visual Studio Community 2019 16.1.5 Visual Micro purchased last week.
	« Last Edit: Jul 9^th, 2019 at 6:51am by Richard4562 »
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Tim@Visual Micro Administrator Online Posts: 12189 Location: United Kingdom Joined: Apr 10^th, 2010	Re: "Builds" work consistently..."Rebuilds" fail... Reply #1 - Jul 9^th, 2019 at 11:46am	Print Post
	There should be no difference. The rebuild simply says to ignore the cache. This is the error. Code effect_flange.h: 26:21: fatal error: C:\Windows\TEMP\VMBuilds\audou_002\teensy31\Debug\pch\Arduino.h: No such file or directory compilation terminated Looking at the teensy build it runs this event/hook to do some magic with the arduino.h. We will have to investigate why your code is looking for the arduino.h in the temp build folder. This is certainly the intention of something similar for Teensy but it needs little investigation before we can know why the hook is failing. It builds okay for us so we will review your config differences. Why the hook would think there is an Arduino.h in the temp build folder is very weird but I am sure there is explanation. Code recipe.hooks.sketch.prebuild.1.pattern "H:\arduino-1.8.9\hardware\teensy/../tools/precompile_helper" "H:\arduino-1.8.9\hardware\teensy\avr/cores/teensy3" "C:\Windows\TEMP\VMBuilds\audou_002\teensy31\Debug" "H:\arduino-1.8.9\hardware\teensy/../tools/arm/bin/arm-none-eabi-g++" -x c++-header -O2 -g -Wall -ffunction-sections -fdata-sections -nostdlib -MMD -fno-exceptions -fpermissive -felide-constructors -std=gnu++14 -Wno-error=narrowing -fno-rtti -mthumb -mcpu=cortex-m4 -fsingle-precision-constant -D__MK20DX256__ -DTEENSYDUINO=146 -DARDUINO=10809 -DF_CPU=96000000 -DUSB_SERIAL -DLAYOUT_US_ENGLISH "-IH:\arduino-1.8.9\hardware\teensy\avr/cores/teensy3" "C:\Windows\TEMP\VMBuilds\audou_002\teensy31\Debug/pch/Arduino.h" -o "C:\Windows\TEMP\VMBuilds\audou_002\teensy31\Debug/pch/Arduino.h.gch"
	« Last Edit: Jul 9^th, 2019 at 11:48am by Tim@Visual Micro »

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Richard4562 Junior Member Offline Posts: 21 Joined: Oct 10^th, 2016	Re: "Builds" work consistently..."Rebuilds" fail... Reply #2 - Jul 9^th, 2019 at 7:07pm	Print Post
	Well...it only seems to be happening in this specific application. I have another teensy application that is working fine...and doesn't show this behavior. I just wanted to point it out because it might show a more generic issue. What you describe seems to be a specific edge case...so I wouldn't bother.
	« Last Edit: Jul 9^th, 2019 at 7:12pm by Richard4562 »

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Tim@Visual Micro Administrator Online Posts: 12189 Location: United Kingdom Joined: Apr 10^th, 2010	Re: "Builds" work consistently..."Rebuilds" fail... Reply #3 - Jul 9^th, 2019 at 10:38pm	Print Post
	Thanks for the report. We have reproduced. The problem was that the recent release of the teensy platform creates a pre compiled header (.pch) that core uses, yet the event that creates the .pch is marked up to run before the sketch code builds. Visual Micro created and cached the core before building the sketch code therefore the event had not run and the .pch had not been created. https://www.visualmicro.com/forums/YaBB.pl?board=VS_ARDUINO_EXT_RELEASES The link above gives a fix in 1907.9.0 Thanks for the report.


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Richard4562 Junior Member Offline Posts: 21 Joined: Oct 10^th, 2016	Re: "Builds" work consistently..."Rebuilds" fail... Reply #4 - Jul 9^th, 2019 at 11:22pm	Print Post
	Wow...this sounds so complex...and yet you make it look easy. Props to you!!! I use Visual Studio for a lot of WPF Windows coding. I'm so glad I'm able to work in the same IDE environment for programming microcontrollers.


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