Conan: Qt WebEngine resources not found

$ ./recipebrowser
qt.webenginecontext:

GL Type: desktop
Surface Type: OpenGL
Surface Profile: CompatibilityProfile
Surface Version: 4.6
QSG RHI Backend: OpenGL
Using Supported QSG Backend: yes
Using Software Dynamic GL: no
Using Multithreaded OpenGL: yes

Init Parameters:

• application-name recipebrowser
• browser-subprocess-path /.data/qtwebengine/6.3.1-alpha1/qt/everywhere/package/9e4bdb238268b42cc137418347cd5d8861cd5ce0/libexec/QtWebEngineProcess
• create-default-gl-context
• disable-features ConsolidatedMovementXY,InstalledApp,BackgroundFetch,WebOTP,WebPayments,WebUSB,PictureInPicture
• disable-setuid-sandbox
• disable-speech-api
• enable-features NetworkServiceInProcess,TracingServiceInProcess
• enable-threaded-compositing
• in-process-gpu
• use-gl desktop

Qt WebEngine resources not found at /.data/qtbase/6.3.1-alpha1/qt/everywhere/package/104607a54e9359271f3fb11915c98c044cb110c7/resources. Trying parent directory...
Qt WebEngine resources not found at /.data/qtbase/6.3.1-alpha1/qt/everywhere/package/104607a54e9359271f3fb11915c98c044cb110c7. Trying application directory...
Qt WebEngine resources not found at /home/iikka/qt5/qtwebengine/examples/webenginequick/recipebrowser. Trying fallback directory... The application MAY NOT work.
Path override failed for key base::DIR_QT_LIBRARY_DATA and path '/home/iikka/.recipebrowser'
Installed Qt WebEngine locales directory not found at location /.data/qtbase/6.3.1-alpha1/qt/everywhere/package/104607a54e9359271f3fb11915c98c044cb110c7/translations/qtwebengine_locales. Trying application directory...
Qt WebEngine locales directory not found at location /home/iikka/qt5/qtwebengine/examples/webenginequick/recipebrowser/qtwebengine_locales. Trying fallback directory... Translations MAY NOT not be correct.
Path override failed for key ui::DIR_LOCALES and path '/home/iikka/.recipebrowser'
[0523/095804.953156:ERROR:icu_util.cc(253)] Couldn't mmap icu data file
Trace/breakpoint trap (core dumped)