QA问题: Package的package版本倒退，这会破坏package feeds [ version -going- backwards ]

Question

我正在尝试使用已经用devtool build成功构建的Yocto3.1 (pytest从5.x.x到6.x.x)的更新配方来构建core-image-minimal镜像。工作已添加到优先级为6的自定义图层，但我无法编译图像，因为在结束时遇到以下错误

ERROR: python3-pytest-5.3.5-r0 do_packagedata: QA Issue: Package version for package python3-pytest-src went backwards which would break package feeds (from 0:6.2.4-r0 to 0:5.3.5-r0) [version-going-backwards]
ERROR: python3-pytest-5.3.5-r0 do_packagedata: QA Issue: Package version for package python3-pytest-dbg went backwards which would break package feeds (from 0:6.2.4-r0 to 0:5.3.5-r0) [version-going-backwards]
ERROR: python3-pytest-5.3.5-r0 do_packagedata: QA Issue: Package version for package python3-pytest-staticdev went backwards which would break package feeds (from 0:6.2.4-r0 to 0:5.3.5-r0) [version-going-backwards]
ERROR: python3-pytest-5.3.5-r0 do_packagedata: QA Issue: Package version for package python3-pytest-dev went backwards which would break package feeds (from 0:6.2.4-r0 to 0:5.3.5-r0) [version-going-backwards]
ERROR: python3-pytest-5.3.5-r0 do_packagedata: QA Issue: Package version for package python3-pytest-doc went backwards which would break package feeds (from 0:6.2.4-r0 to 0:5.3.5-r0) [version-going-backwards]
ERROR: python3-pytest-5.3.5-r0 do_packagedata: QA Issue: Package version for package python3-pytest-locale went backwards which would break package feeds (from 0:6.2.4-r0 to 0:5.3.5-r0) [version-going-backwards]
ERROR: python3-pytest-5.3.5-r0 do_packagedata: QA Issue: Package version for package python3-pytest went backwards which would break package feeds (from 0:6.2.4-r0 to 0:5.3.5-r0) [version-going-backwards]
ERROR: core-image-minimal-1.0-r0 do_rootfs: The postinstall intercept hook 'update_gtk_icon_cache' failed, details in /home/cladm1/var-fslc-yocto/build_fb/tmp/work/imx6ul_var_dart-fslc-linux-gnueabi/core-image-minimal/1.0-r0/temp/log.do_rootfs
ERROR: Logfile of failure stored in: /home/cladm1/var-fslc-yocto/build_fb/tmp/work/imx6ul_var_dart-fslc-linux-gnueabi/core-image-minimal/1.0-r0/temp/log.do_rootfs.13259
ERROR: Task (/home/cladm1/var-fslc-yocto/sources/poky/meta/recipes-core/images/core-image-minimal.bb:do_rootfs) failed with exit code '1'

这与层优先级有关吗？我注意到，提供pytest配方(5.x.x)的meta-python层比我的层具有更高的优先级。如果不是，有什么问题吗？

Answer 1

有两个错误：

1. 致命的QA问题(因为它在ERROR_QA).

中

应选择可用的最高版本。该行为可能会被variable DEFAULT_PREFERENCE或variable PREFERRED_VERSION更改。还要检查bitbake-layers及其子命令show-recipes、show-overlayed和show-appends的输出。也许会有一些有用的东西。

1. Failure of postinstall hook

请看下面这行：

ERROR: core-image-minimal-1.0-r0 do_rootfs: The postinstall intercept hook 'update_gtk_icon_cache' failed, details in /home/cladm1/var-fslc-yocto/build_fb/tmp/work/imx6ul_var_dart-fslc-linux-gnueabi/core-image-minimal/1.0-r0/temp/log.do_rootfs

问题是安装后挂钩失败。有一些解决方案(或变通方法？)在互联网上。还要检查上面提到的日志文件。

编辑:我在第一个答案中错了，version-going-backwards被视为错误。