fatal error: app_version.h: No such file or directory when using nRF5340 DK and nRF Connect for VSC and trying to implement Zephyr versioning

[lcj]

I am using the nRF Connect for Visual Studio Code Add-In running with the nRF Connect 2.5.0 toolchain and was trying to implement the application versioning on a nRF5340 DK following https://docs.zephyrproject.org/latest/build/version/index.html, but I get a fatal error: app_version.h: No such file or directory. I might be missing something but was reading:

To use the version information in application code, the version file must be included, then the fields can be freely used. The include file name is app_version.h (no path is needed)

 

So, it seems like it should work. I've tried with "" and <>.

[Maria Gilje]

Hello,

Have you prepared a VERSION file for your project? If yes: is it located in the same directory as prj.conf? These requirements are described in the VERSION file section of the documentation you linked.

Best regards,

Maria

[lcj]

The answer is yes to both questions. It's hard to tell what might cause the error, but given it's an include problem, would that be the issue?

[Maria Gilje]

Hello,

Thank you for your patience.

I want to be sure that we are using the same methods. Please follow these instructions and report if you get the same build error:

1. Verify that your toolchain version matches the NCS version.
2. Add ncs/zephyr/samples/hello_world as an application in the nRF Connect for VS Code extension
3. Create VERSION and save it to hello_world.
4. Add 

   VERSION_MAJOR = 1
   VERSION_MINOR = 2
   PATCHLEVEL = 3
   VERSION_TWEAK = 4
   EXTRAVERSION = unstable

    to VERSION
5. Add #include <app_version.h> to hello_world/src/main.c
6. Create a build configuration for hello_world with nrf5340dk_nrf5340_cpuapp as the build target and build the sample.

Best regards,

Maria

[lcj]

I installed and set my apps toolchain to v2.5.0 and it's working now. I didn't really know what step 1 meant. I'm not even sure I know how to change the toolchains.

[Monkeytronics]

Have followed these instructions to the letter, but not working. File named VERSION 

VERSION_MAJOR = 1
VERSION_MINOR = 0
PATCHLEVEL = 2
VERSION_TWEAK = 0
EXTRAVERSION = dev

located at app root, next to prj.conf.

Then in main.c

// #include <app_version.h>
#include <zephyr/app_version.h>


    LOG_INF("Version: %s, protocol: %s", CONFIG_APP_VERSION_STRING, protocol);

Note - also, checked `docs.zephyrproject.org/.../index.html` which suggested slightly different #include. Also, does not work. 

Error = 

C:/ncs/smpl/src/main.c: In function 'main':
C:/ncs/smpl/src/main.c:69:37: error: 'CONFIG_APP_VERSION_STRING' undeclared (first use in this function); did you mean 'CONFIG_APP_VERSION_SHELL'?
   69 |                 CONFIG_APP_VERSION, CONFIG_APP_VERSION_STRING, protocol);