@lduboeuf I had a look to your link. I can see the following line: framework: ubuntu-sdk-16.04.5 However, your CMakeList.txt file shows: set(CLICK_FRAMEWORK "ubuntu-sdk-20.04") I guess it does not matter since you can build the app. I am struggling with this issue. I installed clickable in my desktop machine (20.04) but want to develop the app for my BQ 4.5 (Xenial, 16.04). Although I have manually changed the lines in the apparmor file from 20.04 to 16.04, { "policy_groups": [], "policy_version": 16.04 } it still complains when I tried to build the click package: - security:policy_version_matches_framework:phonehome.apparmor 16.04 != 20.04 (ubuntu-sdk-20.04.1) http://askubuntu.com/q/686347 The provided link does not consider this ubuntu versions, but I guess 16.04 should be valid. I have consistently introduce set(CLICK_FRAMEWORK "ubuntu-sdk-16.04") in the json file, but without luck. I do not know why clickable insists in 20.04, when none file has this version number typed.

@bmlu said in Any chance of updating 16.04 to 20.04?: f.e. a Google Pixel 3a would do the job It would! I use the Oneplus 5t and that is also a fine device for UT. Just keep your eye on the top of that list and see what's on offer.