Device.h : no such file or directory

[User_PP]

Hi all,

I am new to using nordic, nrf connect. I started with establishing I2c communication between Zedf9p and actinius icarus(nrf52) but after buling the code it is exiting saying the following:

fatal error: device.h: No such file or directory
7 | #include <device.h>
| ^~~~~~~~~~
compilation terminated.

I included the following in my code:

#include <device.h>

#include <devicetree.h>

#include <drivers/gpio.h>

#include <drivers/i2c.h>

#include <sys/printk.h>

#include <zephyr.h>

#include <stdio.h>

#include <math.h>

Generally this shouldnt cause an issue as this worked other codes and now I am stuck.

Any help will be appreciated.

Thanks

[Lars Fredrik]

Does inserting the line 

#include <zephyr/kernel.h>

 before 

#include <zephyr/kernel.h>

 resolve the issue?  If not, could you upload your project as a zip?

[User_PP]

It did'nt solve the error... PPP.zip I attached my file.

[Lars Fredrik]

Okay, so I think I fixed it now. I've attached the working code 3817.PPP.zip, and commented it where I made changes. The changes were:

1.  Removed a stay 'a' at line 34.
2. In the device tree overlay, i made the label match the node. This would matter if it wasn't for that I had to...
3. ... make sure the label inside DT_NODELABEL() was set to the actual label in the overlay.
4. Added "zephyr/sys/" in front of the includes.
5. Enabled I2C in the prj.conf. (very important when using I2C! )

Hope this helps! 

[User_PP]

Thank you so much, I forgot to add config_i2c = y in cnofig file that's what was causing the issue!