[NCS v1.7.0]Matter light_bulb example compilation error

Question

Dear friend， 
 I followed the steps below and failed to compile the v1.7.0
rf\samples\matter\light_bulb program: 1. Enter the v1.7.0	oolchain directory and double-click "SEGGER Embedded Studio.cmd" to open SEGGER. 2. Click "File"->"Open nRF Connect SDK Project" 3. Select the light_bulb project in matter in the Project column, as shown in the figure below: 
 4. Click "Rebuild" and the following error appears: 
 
 Rebuilding ‘zephyr/linker_zephyr_prebuilt.cmd’ from solution ‘build’ in configuration ‘Common’
1> Combining ‘zephyr/linker_zephyr_prebuilt.cmd’
1> zephyr\CMakeFiles\linker_zephyr_prebuilt.cmd-a833d9e.bat b9ac94e79f037c6a
1> Error starting process zephyr\CMakeFiles\linker_zephyr_prebuilt.cmd-a833d9e.bat
Build failed 
 The same operation, compiling v1.7.0
rf\samples\matter\light_switch is successful. How is matter\light_bulb compiled? 
 
 Best Regards， 
 Zero

Karl Ylvisaker · Accepted Answer

Hello Zero, I just tried this on my end following the steps you describe for the Matter light bulb example, but it builds and rebuilds as expected on my end. Your error logs indicate that you might have ran into an issue with the Zephyr dependency part of the SDK. Did you use the Toolchain Manager to install the SDK, or did you do it manually? Could you try to reinstall the NCS SDK v1.7.0 using the Toolchain Manager? As a side note I notice that you have placed your NCS installation in the /Nordic/nRF_Connect_SDK/ directory. It is recommended that you place the NCS installation as far up in your hierarchy as possible to avoid the 260 character path length limit imposed by Windows. Ideally, your ncs folder would be located at the top of the hierarchy. In the case that the 260 character path limit is exceeded the compiler will not be able to find the files even though they are present at the specified location, which can be very frustrating to debug if you are unaware of the path character limit. Best regards, Karl

Armin · Answer

Now I loaded the same project in the same NCS 1.7.0 environment into nRF Connect for VSC and here it is built without any problems. It's meanwhile already running on the devkit. So it is definitely an SES problem, or at least something which relates to SES. I will now no longer investigate on this as we anyway will switch over to nRF Connect for VSC. 
 My final recommendation now would definitely be to switch over to nRF Connect for VSC for new projects like Matter.

[NCS v1.7.0]Matter light_bulb example compilation error

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