FindUSB1.cmake error under RPI3

[andimik]

I have several PCs where I could install the host under Ubuntu. But on my RPI3 I get an error:

pi@raspberrypi:~/apps/airspy/airspyone_host-master/libairspy/build $ cmake ../ -DINSTALL_UDEV_RULES=ON
CMake Error at CMakeLists.txt:77 (find_package):
By not providing "FindUSB1.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "USB1", but
CMake did not find one.

Could not find a package configuration file provided by "USB1" with any of
the following names:

USB1Config.cmake
usb1-config.cmake

Add the installation prefix of "USB1" to CMAKE_PREFIX_PATH or set
"USB1_DIR" to a directory containing one of the above files. If "USB1"
provides a separate development package or SDK, be sure it has been
installed.

-- Configuring incomplete, errors occurred!
See also "/home/pi/apps/airspy/airspyone_host-master/libairspy/build/CMakeFiles/CMakeOutput.log".

What can I do?

pi@raspberrypi:~ $ dpkg -l | grep usb
ii libusb-0.1-4:armhf 2:0.1.12-25 armhf userspace USB programming library
ii libusb-1.0-0:armhf 2:1.0.19-1 armhf userspace USB programming library
ii libusb-1.0-0-dbg:armhf 2:1.0.19-1 armhf userspace USB programming library development files
ii libusb-1.0-0-dev:armhf 2:1.0.19-1 armhf userspace USB programming library development files
ii libusb-1.0-doc 2:1.0.19-1 all documentation for userspace USB programming
ii libusbmuxd2:armhf 1.0.9-1 armhf USB multiplexor daemon for iPhone and iPod Touch devices - library
ii usb-modeswitch 2.2.0+repack0-2 armhf mode switching tool for controlling "flip flop" USB devices
ii usb-modeswitch-data 20150115-1 all mode switching data for usb-modeswitch
ii usbutils 1:007-2 armhf Linux USB utilities

[bvernoux]

It seems you have not executed the Prerequisites for Linux (Debian/Ubuntu/Raspbian) see
https://github.com/airspy/airspyone_host#how-to-build-the-host-software-on-linux mainly step

sudo apt-get install build-essential cmake libusb-1.0-0-dev pkg-config

Please do all those steps and you shall do not have any problem as your problem seems related to the fact libusb headers/library are not found

[andimik]

No, I've installed them, they are the latest version.

pi@raspberrypi:/ $ sudo apt-get install build-essential cmake libusb-1.0-0-dev pkg-config
Paketlisten werden gelesen... Fertig
Abhängigkeitsbaum wird aufgebaut.
Statusinformationen werden eingelesen.... Fertig
build-essential ist schon die neueste Version.
libusb-1.0-0-dev ist schon die neueste Version.
pkg-config ist schon die neueste Version.
cmake ist schon die neueste Version.
Das folgende Paket wurde automatisch installiert und wird nicht mehr benötigt:
libqwt6
Verwenden Sie »apt-get autoremove«, um es zu entfernen.
0 aktualisiert, 0 neu installiert, 0 zu entfernen und 20 nicht aktualisiert.

[bvernoux]

I have checked your path and it is wrong
pi@raspberrypi:~/apps/airspy/airspyone_host-master/libairspy/build $ cmake ../ -DINSTALL_UDEV_RULES=ON
It shall be
pi@raspberrypi:~/apps/airspy/airspyone_host-master/build $ cmake ../ -DINSTALL_UDEV_RULES=ON
You have not created the build directory in the right path so it cannot work to find modules ...
Please do exactly like it is described here https://github.com/airspy/airspyone_host#how-to-build-the-host-software-on-linux and do not change the path for the build dir
remove all files previously downloaded... and retry all step by step

[touil]

RTFM.

[andimik]

Very strange. I used wget and this now works. I always used the green button for downloading the zip-file.