The required XCB cursor platform library was not found!

[MH2012]

Hi

I have a annoying problem when installing Qt from the Online Installer package to a laptop.

OS: Debian 12

As the headline states, it is a problem with the library XCB. The installer pops up in the initial phase with the above message.

The box provides commands to install the required librarries, which I used, but it doesn't solve the problem.

I remember I had a similar issue on my desktop but I think I resolved it by installing XCB package.

I hope someone in here can help me as I need it for studying reasons.

Martin

[Christian Ehrlicher]

Use ldd to find out which library is missing and install it.

[MH2012]

@Christian-Ehrlicher

This is the output when running:

ldd ./qt-online-installer-linux-x64-4.8.1.run

linux-vdso.so.1 (0x00007fff3a4a1000)
	libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f6d143f9000)
	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f6d143da000)
	libbz2.so.1 => /lib/x86_64-linux-gnu/libbz2.so.1 (0x00007f6d143c7000)
	liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f6d14398000)
	libxkbcommon-x11.so.0 => /lib/x86_64-linux-gnu/libxkbcommon-x11.so.0 (0x00007f6d1438d000)
	libxcb-icccm.so.4 => /lib/x86_64-linux-gnu/libxcb-icccm.so.4 (0x00007f6d14384000)
	libxcb-image.so.0 => /lib/x86_64-linux-gnu/libxcb-image.so.0 (0x00007f6d1437e000)
	libxcb-keysyms.so.1 => /lib/x86_64-linux-gnu/libxcb-keysyms.so.1 (0x00007f6d14000000)
	libxcb-randr.so.0 => /lib/x86_64-linux-gnu/libxcb-randr.so.0 (0x00007f6d1436d000)
	libxcb-render-util.so.0 => /lib/x86_64-linux-gnu/libxcb-render-util.so.0 (0x00007f6d13c00000)
	libxcb-shm.so.0 => /lib/x86_64-linux-gnu/libxcb-shm.so.0 (0x00007f6d14368000)
	libxcb-sync.so.1 => /lib/x86_64-linux-gnu/libxcb-sync.so.1 (0x00007f6d1435e000)
	libxcb-xfixes.so.0 => /lib/x86_64-linux-gnu/libxcb-xfixes.so.0 (0x00007f6d14355000)
	libxcb-render.so.0 => /lib/x86_64-linux-gnu/libxcb-render.so.0 (0x00007f6d14347000)
	libxcb-shape.so.0 => /lib/x86_64-linux-gnu/libxcb-shape.so.0 (0x00007f6d14342000)
	libxcb-xkb.so.1 => /lib/x86_64-linux-gnu/libxcb-xkb.so.1 (0x00007f6d14325000)
	libxcb.so.1 => /lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f6d142fb000)
	libX11-xcb.so.1 => /lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f6d142f4000)
	libX11.so.6 => /lib/x86_64-linux-gnu/libX11.so.6 (0x00007f6d13ebe000)
	libfreetype.so.6 => /lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f6d1422a000)
	libfontconfig.so.1 => /lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007f6d13e73000)
	libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007f6d13e1d000)
	libxkbcommon.so.0 => /lib/x86_64-linux-gnu/libxkbcommon.so.0 (0x00007f6d13bba000)
	libzstd.so.1 => /lib/x86_64-linux-gnu/libzstd.so.1 (0x00007f6d13afe000)
	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f6d14223000)
	libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007f6d14212000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f6d1420d000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f6d14208000)
	libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f6d13800000)
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f6d13a1f000)
	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f6d137e0000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f6d135ff000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f6d14412000)
	libxcb-util.so.1 => /lib/x86_64-linux-gnu/libxcb-util.so.1 (0x00007f6d13e15000)
	libXau.so.6 => /lib/x86_64-linux-gnu/libXau.so.6 (0x00007f6d13e10000)
	libXdmcp.so.6 => /lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f6d13200000)
	libpng16.so.16 => /lib/x86_64-linux-gnu/libpng16.so.16 (0x00007f6d135c9000)
	libbrotlidec.so.1 => /lib/x86_64-linux-gnu/libbrotlidec.so.1 (0x00007f6d135bc000)
	libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f6d13591000)
	libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007f6d134c1000)
	libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x00007f6d134ab000)
	libbrotlicommon.so.1 => /lib/x86_64-linux-gnu/libbrotlicommon.so.1 (0x00007f6d13488000)
	libcap.so.2 => /lib/x86_64-linux-gnu/libcap.so.2 (0x00007f6d1347c000)
	libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007f6d130b9000)
	liblz4.so.1 => /lib/x86_64-linux-gnu/liblz4.so.1 (0x00007f6d13456000)
	libmd.so.0 => /lib/x86_64-linux-gnu/libmd.so.0 (0x00007f6d13449000)
	libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007f6d13421000)

I don't know what exactly to look for, but based on similar topics it is the library libxcb-util.so.1 that is the issue.

[MH2012]

Hmm I think the problem was that I didn't run the binary with sudo.