Hello,

We have an interesting error happening. We have an identical setup on 3 machines. VS2017 and the latest visual micro. When opening the same arduino project on all 3 machines two of the machines have no problem with our include files and one machine gives an error on the standard include of math.h.

#include <math.h> 

Does anyone have any idea on why one machine has a problem finding the math.h library?

The MV setup for the arduino IDE is the same on all three machines. (see attached screenshot)

The error is: Cannot open source file "math.h" (also, see attached screenshot)

Thank you.

Thanks for the reply.

It seems that at times Visual Studio has problems with the fact that we are using a custom board package. We have to use the dropdown for "Add library" and add the DynamixelSDK.h library and when you do the math.h include will start working. 

I'm not sure why just typing in this include doesn't work. We have to add it through the VM menu for it to work.

#include <DynamixelSDK.h> 

Also, if they are both highlighted red, when doing a build VS finds the files and the errors goes away. 

I haven't been able to repeat it where it is just the math.h include with a red error today. So I can't produce a build report with an error.

Since we have figured out what is causing the problem and found out how to fix it we can close this thread issue.

Thanks!

I'm attaching the build output.

What I still don't understand is that the build output doesn't show the math.h being included, but it works.

Also, when using a custom board, and having it used in the VM board type drop down, does that change all the places includes look and that is why it was having trouble finding the math.h file?

I do have it working now as stated above. But curious about learning how this works for future development.