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  VS Arduino › Visual Micro › Installation & Troubleshooting › Shared library project with subfolder
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Normal Topic Shared library project with subfolder (Read 920 times)
DeeJay
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Shared library project with subfolder
Sep 6th, 2022 at 8:56am
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Hi!

I have a Solution with a multiple Arduino Projects and multiple shared Arduino Library Projects. Basically what I did is similar to your tutorial video https://www.youtube.com/watch?v=7ObDIvHuMvc. In this (basic) setup projects are compiling without errors but if I move cpp/h files in Library Project from "\src" folder into sub folder "\src\SubFolder" I got error in Arduino Projects "cannot open source file...". I can resolve this error by changing include to

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#include <SubFolder/MyLibrary.h>


but then I get error "Deep search for libraries... Object reference not set to an instance of an object" while compiling.

According to library readme.txt "Code should be in the src folder, code in sub folders below the \src folder are also supported." so this should work. What I'm doing wrong?
  
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Simon@Visual Micro
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Re: Shared library project with subfolder
Reply #1 - Sep 6th, 2022 at 9:01am
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Can you confirm if you are moving the files using the Solution Explorer in Visual Studio, or just in Windows Explorer?
  
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DeeJay
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Re: Shared library project with subfolder
Reply #2 - Sep 6th, 2022 at 9:55am
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I moved existing files in Solution Explorer. Also tried creating sub folder first and then creating new cpp/h files with add new item.
  
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Simon@Visual Micro
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Re: Shared library project with subfolder
Reply #3 - Sep 6th, 2022 at 10:25am
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If you have the Library project "MyLibrary" then the src folder should contain the "MyLibrary.h" as a minimum.

Then for any other code to be included in the library these can be added to the e.g. src/SubFolders as needed, and referenced in the "MyLibrary.h" file.

The project could end up looking like below as an example:

MyLibrary\src\MyLibrary.h
MyLibrary\src\SubFolder\Formulae.h
MyLibrary\src\SubFolder\Formulae.cpp

So then in your sketch you would only need the include to the MyLibrary.h, which would bring in all other sources needed from the Library Project without specific includes needed in the sketch using it.
  
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DeeJay
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Re: Shared library project with subfolder
Reply #4 - Sep 6th, 2022 at 10:45am
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Yes, that's it. Thanks!
  
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