VS Arduino - Allow Local Libraries breaks build

Jun 2^nd, 2025 at 6:47pm (UTC)

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VS Arduino › › › Allow Local Libraries breaks build

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Allow Local Libraries breaks build (Read 22300 times)

Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Allow Local Libraries breaks build Dec 16^th, 2015 at 4:25pm	Print Post
	Hi. VisualMicro version (from options menu) 1.1511.21 VisualMicro version (from extensions list) 1512.14.0 Visual Studio 2015 If I use option Allow Local Libraries (Tools -> Options -> Visual Micro -> Allow Local Libraries) build process breaks with following error: Code core.a(main.cpp.o):In function `main main.cpp:undefined reference to `setup main.cpp:undefined reference to `loop collect2.exe:error: ld returned 1 exit status Error creating .elf Once I switch off that option - sketch builds well
	« Last Edit: Dec 16^th, 2015 at 4:30pm by Toshik_ »

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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #1 - Dec 16^th, 2015 at 4:30pm	Print Post
	Hi, Thanks for the message. That is an old option that needs to be removed. Local sketch libraries are supported by default. You do not need to switch anything on. To see the correct location to place libraries right click the project name in the solution explorer and click "Add>New Arduino Library". This will create a v2 format library in \src\_micro-api\libraries\libName Old style (v1) and new style (v2) format libraries are supported. Hope that helps


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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #2 - Dec 16^th, 2015 at 4:36pm	Print Post
	Tim@Visual Micro wrote on Dec 16^th, 2015 at 4:30pm: Hi, Thanks for the message. That is an old option that needs to be removed. Local sketch libraries are supported by default. You do not need to switch anything on. To see the correct location to place libraries right click the project name in the solution explorer and click "Add>New Arduino Library". This will create a v2 format library in \src\_micro-api\libraries\libName Old style (v1) and new style (v2) format libraries are supported. Hope that helps Thanks for answer. I have tried that way before messing with "libraries option". I use "Add New Arduino Library", it creates 2 files (.cpp +.h) in /src/_micro-api/libraries/NAME/src folder. Also it adds #include of newly created .h to my sketch But it fails to compile with: Code TEST.ino:17:17: fatal error: RGB.h: No such file or directory :#include "RGB.h" :compilation terminated Error compiling sketch sources
	« Last Edit: Dec 16^th, 2015 at 4:37pm by Toshik_ »

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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #3 - Dec 16^th, 2015 at 5:36pm	Print Post
	Thanks for clarity. 1) Can you please post a screen shot of your solution with the RGB library that you have created. Please ensure the solution view shows the directory structure so I can see the folder structure with the RGB library sources. Or email to info[at]visualmicro.com 2) If you are a novice user that is simply trying to use the standard Arduino RGB library please tell me this so I can give you some alternative advice. 3) If you have changed any of the Compatibility settings in the options? please tell me that you have done that. It affects the compilation of local libraries. Thanks
	« Last Edit: Dec 16^th, 2015 at 6:36pm by Tim@Visual Micro »

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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #4 - Dec 17^th, 2015 at 8:14am	Print Post
	Tim@Visual Micro wrote on Dec 16^th, 2015 at 5:36pm: Thanks for clarity. 1) Can you please post a screen shot of your solution with the RGB library that you have created. Please ensure the solution view shows the directory structure so I can see the folder structure with the RGB library sources. Or email to info[at]visualmicro.com 2) If you are a novice user that is simply trying to use the standard Arduino RGB library please tell me this so I can give you some alternative advice. 3) If you have changed any of the Compatibility settings in the options? please tell me that you have done that. It affects the compilation of local libraries. Thanks It is not related to any code inside. I have made test with newly created empty sketch and empty local library.
	« Last Edit: Dec 17^th, 2015 at 8:33am by Toshik_ »
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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #5 - Dec 17^th, 2015 at 8:18am	Print Post
	Options
	« Last Edit: Dec 17^th, 2015 at 8:36am by Toshik_ »
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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #6 - Dec 17^th, 2015 at 8:34am	Print Post
	Reuploaded screenshots in suitable size
	« Last Edit: Dec 17^th, 2015 at 8:35am by Toshik_ »

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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #7 - Dec 17^th, 2015 at 8:37am	Print Post
	Thanks. Switch on local libraries in the tools options. It was on by default and should be on.


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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #8 - Dec 17^th, 2015 at 8:40am	Print Post
	Tim@Visual Micro wrote on Dec 17^th, 2015 at 8:37am: Thanks. Switch on local libraries in the tools options. It was on by default and should be on. Same error

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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #9 - Dec 17^th, 2015 at 8:43am	Print Post
	If I use following options (screenshot) I am getting error from 1st message: Code core.a(main.cpp.o):In function `main main.cpp:undefined reference to `setup main.cpp:undefined reference to `loop collect2.exe:error: ld returned 1 exit status Error creating .elf

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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #10 - Dec 17^th, 2015 at 8:43am	Print Post
	If I recall the compile files in project was also on by default


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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #11 - Dec 17^th, 2015 at 8:44am	Print Post
	Tim@Visual Micro wrote on Dec 17^th, 2015 at 8:43am: If I recall the compile files in project was also on by default Message #9


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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #12 - Dec 17^th, 2015 at 8:50am	Print Post
	Okay so remove the strange paths you have added to the options.


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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #13 - Dec 17^th, 2015 at 8:58am	Print Post
	Tim@Visual Micro wrote on Dec 17^th, 2015 at 8:50am: Okay so remove the strange paths you have added to the options. Totally the same error


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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #14 - Dec 17^th, 2015 at 9:17am	Print Post
	Here is full compile log
	« Last Edit: Dec 17^th, 2015 at 9:19am by Toshik_ »
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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #15 - Dec 17^th, 2015 at 10:16am	Print Post
	Oh, I didn't see that you had also switched off Compatibility>Compile ALL project folder sources Please switch it back on Thanks


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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #16 - Dec 17^th, 2015 at 10:20am	Print Post
	Tim@Visual Micro wrote on Dec 17^th, 2015 at 10:16am: Oh, I didn't see that you had also switched off Compatibility>Compile ALL project folder sources Please switch it back on Thanks Sorry, but the same error: Code core.a(main.cpp.o):In function `main main.cpp:undefined reference to `setup main.cpp:undefined reference to `loop collect2.exe:error: ld returned 1 exit status Error creating .elf Notice: After each options change I make full clean, VS restart and rebuild
	« Last Edit: Dec 17^th, 2015 at 10:21am by Toshik_ »
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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #17 - Dec 17^th, 2015 at 10:25am	Print Post
	The error suggests you don't have a setup() and loop() but it's in your picture If you zip and email the "TestLocalLibrary" folder and all sub folder it might save us both some time Email to info[at]visualmicro.com


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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #18 - Dec 17^th, 2015 at 10:34am	Print Post
	Tim@Visual Micro wrote on Dec 17^th, 2015 at 10:25am: The error suggests you don't have a setup() and loop() but it's in your picture If you zip and email the "TestLocalLibrary" folder and all sub folder it might save us both some time Email to info[at]visualmicro.com Thanks, I have sent project. But there is no any special - just newly created sketch + newly created local library. I did not write any line of custom code there


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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #19 - Dec 17^th, 2015 at 10:44am	Print Post
	Thanks for the zip. Sorry no idea what the problem is. As you say it's a very simple project and there are plenty of people compiling that without issue. Maybe try restarting Visual studio or the pc. Failing that delete the visual micro registry key HKEY_CurrentUser\Software\Visual micro. Then restart vs and re-enter your ide location but do not change any other settings. Thanks


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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #20 - Dec 17^th, 2015 at 10:48am	Print Post
	Tim@Visual Micro wrote on Dec 17^th, 2015 at 10:44am: Thanks for the zip. Sorry no idea what the problem is. As you say it's a very simple project and there are plenty of people compiling that without issue. Maybe try restarting Visual studio or the pc. Failing that delete the visual micro registry key HKEY_CurrentUser\Software\Visual micro. Then restart vs and re-enter your ide location but do not change any other settings. Thanks Here is result of registry cleaning In error window written (translation) "...Unknown error (Exception from HRESULT..."
	« Last Edit: Dec 17^th, 2015 at 10:52am by Toshik_ »
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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #21 - Dec 17^th, 2015 at 11:05am	Print Post
	Thanks. The error dialog is related to intellisense however it suggests that you are not using a standard Visual Studio project or that the project has been switched from win32/app/dll to a make project. I suggest you create a new project as a test using "File>New>Arduino Project". Then build and confirm the empty project compiles okay. Then click "add>arduino library" and check it compiles okay? If that works I will tell you what the problem was with the current test project. Thanks


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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #22 - Dec 17^th, 2015 at 11:10am	Print Post
	Tim@Visual Micro wrote on Dec 17^th, 2015 at 11:05am: Thanks. The error dialog is related to intellisense however it suggests that you are not using a standard Visual Studio project or that the project has been switched from win32/app/dll to a make project. I suggest you create a new project as a test using "File>New>Arduino Project". Then build and confirm the empty project compiles okay. Then click "add>arduino library" and check it compiles okay? If that works I will tell you what the problem was with the current test project. Thanks * I have created totally new Adruino project. * I did not created any local libraries And, as I mentioned in first post, results: 1. If I switch option "Compile Files In Project" to "True" I get: Code Compiling 'TestLocalLibrary' for 'Arduino/Genuino Mega w/ ATmega2560 (Mega 2560)' core.a(main.cpp.o):In function `main main.cpp:undefined reference to `setup main.cpp:undefined reference to `loop collect2.exe:error: ld returned 1 exit status Error creating .elf 2. If I switch option "Compile Files In Project" to "False" project compiles well: Code Compiling 'TestLocalLibrary' for 'Arduino/Genuino Mega w/ ATmega2560 (Mega 2560)' Binary sketch size: 642 bytes (used 0% of a 253 952 byte maximum) (0,19 secs) Minimum Memory Usage: 9 bytes (0% of a 8192 byte maximum)
	« Last Edit: Dec 17^th, 2015 at 11:11am by Toshik_ »

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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #23 - Dec 17^th, 2015 at 11:24am	Print Post
	Another experiment: 0. Got new, fresh PC 1. Installed VS2015 Enterprise 2. Installed VMicro 3. Downloaded and unzipped Arduino 1.6.6 4. Run once arduino.exe then closed 5. Run VS, specified Arduino IDE path 6. Created new Arduino project 7. Build it and got same error: Code Compiling debug version of 'TestCompile' for 'Arduino/Genuino Mega w/ ATmega2560 (Mega 2560)' core.a(main.cpp.o):In function `main main.cpp:undefined reference to `setup main.cpp:undefined reference to `loop collect2.exe:error: ld returned 1 exit status Error creating .elf Notice: nothing was changed in any settings, it was first VS2015 and VMicro installation on that PC


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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #24 - Dec 17^th, 2015 at 12:32pm	Print Post
	Finally! I found out what is the problem: If any part of path to sketch location contains leading point "." build will fail with error: Code core.a(main.cpp.o):In function `main main.cpp:undefined reference to `setup main.cpp:undefined reference to `loop collect2.exe:error: ld returned 1 exit status Error creating .elf And we use such pathes now like ".Sketches"/".Projects" etc


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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #25 - Dec 17^th, 2015 at 12:37pm	Print Post
	Yes I just found an article on google about this issue also with the arduino ide (but maybe fixed more recently) But I didn't see a . or other illegal characters in the output you posted. No .Sketches"/".Projects etc. Which operating system are you using? Which path contained the "."? Thanks
	« Last Edit: Dec 17^th, 2015 at 12:37pm by Tim@Visual Micro »

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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #26 - Dec 17^th, 2015 at 12:44pm	Print Post
	I use Windows 10 and Linux based PCs, by fact - point by itself is not illegal character, in linux it "hides" folder, e.g. in ftp In my output, when I have changed real pathes due to privacy I've made mistake and replaced leading dot too.. So it is my fault with logs. Real path contains dot in "Projects" => ".Projects"


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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #27 - Dec 17^th, 2015 at 12:54pm	Print Post
	Okay thanks very much for all the info. I will try to replicate and change if possible. Pleased it's working now. Hopefully local libraries etc all work without any change of settings?


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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #28 - Dec 17^th, 2015 at 12:56pm	Print Post
	Tim@Visual Micro wrote on Dec 17^th, 2015 at 12:54pm: Okay thanks very much for all the info. I will try to replicate and change if possible. Pleased it's working now. Hopefully local libraries etc all work without any change of settings? Just tested local libraries - works perfect Thank you for your time! It would be nice if you could fix "dot issue", ofcourse in case it is VisualMicro related.


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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #29 - Dec 17^th, 2015 at 12:58pm	Print Post
	Will try but it might be a gcc issue. Did it cause a problem in the arduino ide?


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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #30 - Dec 17^th, 2015 at 1:30pm	Print Post
	Tim@Visual Micro wrote on Dec 17^th, 2015 at 12:58pm: Will try but it might be a gcc issue. Did it cause a problem in the arduino ide? 1. It compiles well in Arduino IDE 2. It compiles well in VMicro with option "Compile Files In Project" set to "false" 3. It fails to build in VMicro with option "Compile Files In Project" set to "true" So, I assume it is VMicro related


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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #31 - Dec 17^th, 2015 at 1:38pm	Print Post
	Excellent thanks. There is a difference between compiling files in the sketch folder and compiling only the files "included" in the VS project. This is what the compatibility settings control. I expect a Visual Micro bug when excluding files that are supposed to be hidden source control files (which normally start with a "."). Thanks again for the useful diagnostic work!
	« Last Edit: Dec 17^th, 2015 at 1:39pm by Tim@Visual Micro »

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Toshik_ Junior Member Offline Posts: 20 Joined: Dec 16^th, 2015	Re: Allow Local Libraries breaks build Reply #32 - Jan 12^th, 2016 at 12:55pm	Print Post
	Hi! Any news on fixing this?


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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Allow Local Libraries breaks build Reply #33 - Jan 15^th, 2016 at 6:23am	Print Post
	Hi, Yes fixed in the next release due shortly. 1601.15+ Thanks for the report.


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