One of the dependencies of SimpleIni.h is ConvertUTF.h, but it is not present in the package, when it should be.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: libsimpleini-dev 4.17+dfsg-6build2
ProcVersionSignature: Ubuntu 5.15.0-43.46-generic 5.15.39
Uname: Linux 5.15.0-43-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
CasperMD5CheckMismatches: ./preseed/kubuntu.seed ./pool/restricted/n/nvidia-graphics-drivers-510/libnvidia-gl-510_510.60.02-0ubuntu1_amd64.deb ./pool/restricted/n/nvidia-graphics-drivers-510/nvidia-compute-utils-510_510.60.02-0ubuntu1_amd64.deb ./pool/restricted/n/nvidia-graphics-drivers-510/nvidia-driver-495_510.60.02-0ubuntu1_amd64.deb ./pool/restricted/n/nvidia-graphics-drivers-510/nvidia-driver-510_510.60.02-0ubuntu1_amd64.deb ./pool/restricted/n/nvidia-graphics-drivers-510/nvidia-kernel-common-510_510.60.02-0ubuntu1_amd64.deb ./pool/restricted/n/nvidia-graphics-drivers-510/nvidia-kernel-source-510_510.60.02-0ubuntu1_amd64.deb ./pool/restricted/n/nvidia-graphics-drivers-510/nvidia-utils-510_510.60.02-0ubuntu1_amd64.deb ./pool/restricted/n/nvidia-graphics-drivers-510/xserver-xorg-video-nvidia-510_510.60.02-0ubuntu1_amd64.deb ./pool/universe/u/ubiquity/oem-config-kde_22.04.15_all.deb ./pool/universe/g/gcc-10/gcc-10-base_10.3.0-15ubuntu1_i386.deb ./pool/universe/libf/libffi7/libffi7_3.3-5ubuntu1_i386.deb
CasperMD5CheckResult: fail
CurrentDesktop: KDE
Date: Mon Aug 8 15:15:35 2022
InstallationDate: Installed on 2022-06-22 (47 days ago)
InstallationMedia: Kubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419)
SourcePackage: libsimpleini
UpgradeStatus: No upgrade log present (probably fresh install)
ConvertUTF.h is non-free Unicode license file, you should define `SI_CONVERT_ICU` and use libicu-dev.