VS Arduino - Error linking for board Arduino

Apr 25^th, 2024 at 1:22pm (UTC)

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Error linking for board Arduino (Read 2624 times)

StepJohn Newbies Offline Posts: 1 Joined: Jan 1^st, 2018	Error linking for board Arduino Jan 1^st, 2018 at 6:27pm	Print Post
	I have a multi-project solution built in Visual Studio 2015. Most of the projects are libraries, set to build as static .lib. I have a test project which, when set as the startup-project, tests the project libraries in windows. I also have an Arduino project which I created by importing a .ino sketch. When set as the startup-project, this .ino project tests the libraries on a microcontroller. Both of these projects have project references to the library projects they depend on. I have successfully built and run my test project, but when I try to build the Arduino Project, I get linker errors such as this: Code (C++) Compiling debug version of 'SJD_NewHeatingSystem' for 'Arduino/Genuino Mega w/ ATmega1280' cc1GsQfP.ltrans0.ltrans.o*: In function __base_ctor Error linking for board Arduino/Genuino Mega w/ ATmega1280 Relay.h:7: undefined reference to vtable for HardwareInterfaces RelaysPort Relay.h:7: undefined reference to vtable for HardwareInterfaces RelaysPort Debug build failed for project 'SJD_NewHeatingSystem' See the attached picture for my projects and references. Any ideas why the linker is not seeing the object files for the referenced projects?

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Tim@Visual Micro Administrator Offline Posts: 12076 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Error linking for board Arduino Reply #1 - Jan 2^nd, 2018 at 12:45pm	Print Post
	You need to be careful using the word "library". Arduino libraries are quite different to c++ libraries. Arduino does not normally support references to other projects however visual micro provides some extra capability here and visual studio has some specific functionality we use called "shared c++ projects". You should put your shared code in projects then when you add a reference you will find them on the "shared projects" tab. http://www.visualmicro.com/post/2017/01/16/Arduino-Cross-Platform-Library-Develo...


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