# DEY-5.0-r4 CCMP25 populate\_sdk fails **URL:** \ **Category:** Linux\ **Tags:** dey, yocto\ **Created:** [July 31, 2026, 3:03pm UTC](https://forums.digi.com/t/dey-5-0-r4-ccmp25-populate-sdk-fails/38619 "2026-07-31T15:03:12Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![jcdeka](https://avatars.discourse-cdn.com/v4/letter/j/4491bb/32.png) [@jcdeka](https://forums.digi.com/u/jcdeka)\ **Post date:** [July 31, 2026, 3:03pm UTC](https://forums.digi.com/t/dey-5-0-r4-ccmp25-populate-sdk-fails/38619/1 "2026-07-31T15:03:13Z")
I am unable to build the CCMP25 toolchain for DEY-5.0. Anyone else having this problem? To reproduce the error: - Pull the dey-5.0 docker image, run it, and create a project for ccmp25 when prompted as described in [Set up Digi Embedded Yocto Docker container on Linux | ConnectCore MP25](https://docs.digi.com/resources/documentation/digidocs/embedded/dey/5.0/ccmp25/yocto-set-up-docker-linux_t.html) - run `bitbake dey-image-webkit` - succeeds - run `bitbake -c populate_sdk dey-image-webkit` - fails I expected the populate\_sdk command to complete successfully and output a `dey-toolchain-ccmp25-dvk-5.0-r4.sh` which I could give to my team to cross-compile against. In reality, I see the following failure: ```auto Setscene tasks: 4989 of 4989 Currently 8 running tasks (10352 of 10953) 94% |####################################################################################################################################################### | ERROR: dey-image-webkit-1.0-r0 do_populate_sdk: Could not invoke dnf. Command '/home/dey/workspace/ccmp25-dvk/tmp/work/ccmp25_dvk-dey-linux/dey-image-webkit/1.0/recipe-sysroot-native/usr/bin/dnf -v --rpmverbosity=info -y -c /home/dey/workspace/ccmp25-dvk/tmp/work/ccmp25_dvk-dey-linux/dey-image-webkit/1.0/sdk/image/usr/local/oe-sdk-hardcoded-buildpath/sysroots/cortexa35-dey-linux/etc/dnf/dnf.conf --setopt=reposdir=/home/dey/workspace/ccmp25-dvk/tmp/work/ccmp25_dvk-dey-linux/dey-image-webkit/1.0/sdk/image/usr/local/oe-sdk-hardcoded-buildpath/sysroots/cortexa35-dey-linux/etc/yum.repos.d [...] zstd-src zstd-staticdev' returned 1: DNF version: 4.19.0 cachedir: /home/dey/workspace/ccmp25-dvk/tmp/work/ccmp25_dvk-dey-linux/dey-image-webkit/1.0/sdk/image/usr/local/oe-sdk-hardcoded-buildpath/sysroots/cortexa35-dey-linux/var/cache/dnf Added oe-repo repo from /home/dey/workspace/ccmp25-dvk/tmp/work/ccmp25_dvk-dey-linux/dey-image-webkit/1.0/oe-sdk-repo User-Agent: falling back to 'libdnf': could not detect OS or basearch repo: using cache for: oe-repo oe-repo: using metadata from Fri 31 Jul 2026 02:05:20 PM UTC. Last metadata expiration check: 0:00:32 ago on Fri 31 Jul 2026 02:05:20 PM UTC. Excludes in dnf.conf: eudev-hwdb, kernel-image-* --> Starting dependency resolution --> Finished dependency resolution Error: Problem: package libstai-mpu-dev-6.2.0-r0.0.cortexa35 from oe-repo requires stai-mpu-ort, but none of the providers can be installed - conflicting requests - nothing provides libonnxruntime.so.1()(64bit) needed by libstai-mpu-ort6-6.2.0-r0.0.cortexa35 from oe-repo - nothing provides libonnxruntime.so.1(VERS_1.19.2)(64bit) needed by libstai-mpu-ort6-6.2.0-r0.0.cortexa35 from oe-repo (try to add '--skip-broken' to skip uninstallable packages) ERROR: Logfile of failure stored in: /home/dey/workspace/ccmp25-dvk/tmp/work/ccmp25_dvk-dey-linux/dey-image-webkit/1.0/temp/log.do_populate_sdk.746513 ERROR: Task (/usr/local/dey-5.0/sources/meta-digi/meta-digi-dey/dynamic-layers/webkit/recipes-core/images/dey-image-webkit.bb:do_populate_sdk) failed with exit code '1' NOTE: Tasks Summary: Attempted 10953 tasks of which 8304 didn't need to be rerun and 1 failed. Summary: 1 task failed: /usr/local/dey-5.0/sources/meta-digi/meta-digi-dey/dynamic-layers/webkit/recipes-core/images/dey-image-webkit.bb:do_populate_sdk log: /home/dey/workspace/ccmp25-dvk/tmp/work/ccmp25_dvk-dey-linux/dey-image-webkit/1.0/temp/log.do_populate_sdk.746513 Summary: There were 2 WARNING messages. Summary: There was 1 ERROR message, returning a non-zero exit code. ``` Originally, I thought this was a problem with my custom build, but as shown above it easily reproduces using the official DEY-5.0 container with no local changes to dey-image-webkit. Any ideas? ---
**Author:** ![gvalcaza](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/gvalcaza/32/10440_2.png) [@gvalcaza](https://forums.digi.com/u/gvalcaza)\ **Post date:** [August 11, 2026, 8:43am UTC](https://forums.digi.com/t/dey-5-0-r4-ccmp25-populate-sdk-fails/38619/2 "2026-08-11T08:43:51Z")
We recommend using the **dey-toolchain** image type to generate SDKs: ```auto bitbake -c populate_sdk dey-toolchain ``` This is a general-purpose SDK, combining most of the packages needed for all of our image types (qt, lvgl, webkit…). We used to build separate SDKs per image type, but we changed this in DEY 5.0 in favor of a single SDK per platform. In the meantime, we’re investigating the error. It’s reproducible when building an SDK for images that contain the mp1/mp2 machine learning packages. dey-image-webkit on the ccmp25 happens to be one of the only images where this happens by default. If you _really_ need the machine learning packages in your SDK, you can fix the issue by manually adding **onnxruntime** to your image and re-building the SDK. To do so, add the following line to your project’s **conf/local.conf** file: ```auto IMAGE_INSTALL:append = " onnxruntime" ``` Otherwise, if the machine learning packages aren’t essential, then **dey-toolchain** is the way to go. ---
**Author:** ![jcdeka](https://avatars.discourse-cdn.com/v4/letter/j/4491bb/32.png) [@jcdeka](https://forums.digi.com/u/jcdeka)\ **Post date:** [August 11, 2026, 4:52pm UTC](https://forums.digi.com/t/dey-5-0-r4-ccmp25-populate-sdk-fails/38619/3 "2026-08-11T16:52:53Z")
Thank you very much. Adding `onnxruntime` to local.conf does fix the dey-image-webkit SDK build. I appreciate you finding a work-around and replying to my question. > We recommend using the **dey-toolchain** image type to generate SDKs This recommendation is hard to find in the DEY 5.0 documentation (if it exists at all). It’s nice that it’ll show up in a forum search now, but if anyone on the Digi team has a chance to update their docs with this information it would be really helpful for future users. I was able to build the dey-toolchain target as well and my application successfully cross-compiles against it. ---
**Author:** ![gvalcaza](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/gvalcaza/32/10440_2.png) [@gvalcaza](https://forums.digi.com/u/gvalcaza)\ **Post date:** [August 12, 2026, 9:14am UTC](https://forums.digi.com/t/dey-5-0-r4-ccmp25-populate-sdk-fails/38619/4 "2026-08-12T09:14:48Z")
I was also surprised to see that dey-toolchain wasn’t mentioned anywhere in the documentation. I’ll create a ticket to see what the team can do about that.