libjson-dev is missing

[GunioProstia]

Hi, I have a problem with "libjson-dev" [https://imgur.com/8E3F8A6] any ideas ?! I'm with Raspberry pi 4 8GB, Raspberry Pi OS (Legacy, 64-bit) , released:2025-11-24 (Bookworm), 64/128GB SD

[michalpelka]

sudo apt-get install libjson-dev?

[michalpelka]

That is literally first point :

sudo apt-get install build-essential cmake git rapidjson-dev libjson-dev debhelper build-essential ntfs-3g libserial-dev libgpiod-dev libzmq3-dev libpistache-dev libcamera-dev linuxptp debhelper libopencv-dev pps-tools ppsh
``` in readme

[GunioProstia]

sudo apt-get install libjson-dev?

same

[michalpelka]

Has

sudo apt-get update
sudo apt-get upgrade

succeeded?

[GunioProstia]

Yes

[michalpelka]

Try command from CI:

apt-get update -qq
          apt-get install -y -qq --no-install-recommends \
            build-essential cmake git pkg-config ca-certificates \
            libserial-dev libgpiod-dev libzmq3-dev libboost-all-dev \
            libpistache-dev rapidjson-dev nlohmann-json3-dev libzmq3-dev cppzmq-dev \
            libcamera-dev libopencv-dev pps-tools

[GunioProstia]

gunio@malina:/tmp/usbmount $ dpkg-buildpackage -us -uc -b dpkg-buildpackage: info: source package usbmount dpkg-buildpackage: info: source version 0.0.24 dpkg-buildpackage: info: source distribution unstable dpkg-buildpackage: info: source changed by Mathieu Letendre-Jauniaux <mathieulj@gmail.com> dpkg-buildpackage: info: host architecture arm64 dpkg-source --before-build . dpkg-checkbuilddeps: error: Unmet build dependencies: debhelper (>= 9) dpkg-buildpackage: warning: build dependencies/conflicts unsatisfied; aborting dpkg-buildpackage: warning: (Use -d flag to override.) gunio@malina:/tmp/usbmount $ cd .. gunio@malina:/tmp $ sudo apt install ./usbmount_0.0.24_all.deb Reading package lists... Done E: Unsupported file ./usbmount_0.0.24_all.deb given on commandline
[img]https://i.imgur.com/INTXzmq.png[/img]

I think we need a whole new "README" file with installation instructions...

[michalpelka]

Please consider contributing. It seems that you had unmet dependency that need to be resolved - it is an error I can see in your screenshot.

[michalpelka]

You failed to run

sudo apt-get install build-essential cmake git rapidjson-dev libjson-dev debhelper build-essential ntfs-3g libserial-dev libgpiod-dev libzmq3-dev libpistache-dev libcamera-dev linuxptp debhelper libopencv-dev pps-tools ppsh

due to package that was renamed (libjson-dev). So you did not installed others.
I recommend to read output of every command in Linux that returns non-zero code to troubleshoot early, it will save everyone time.