Qt project release ubuntu - error while loading shared libraries: libQt5Widgets.so.5

Question

I want to release my project written with Qt to a Ubuntu / Linux user. If they try to execute the build release version they get this error message, because they have not installed Qt:

error while loading shared libraries: libQt5Widgets.so.5: cannot open shared object file: No such file or directory

Is there a way to add all the libraries such as libQt5Widgets.so.5 to the folder where the executable is, just like under Windows with qt.conf, where you can specify the Plugins folder?

Answer 1

Try this

sudo apt-get install libqt5widgets5

Answer 2

One solution could be:

export LD_LIBRARY_PATH=/path/to/dir/with/libs:$LD_LIBRARY_PATH

But a proper solution would be to install QT libraries in system and/or package your app for Ubuntu (in your case).

Answer 3

I had recently updated the Android tools via the SDK manager when I saw this error.

Re-install the SDK tools to fix. That is what worked for my machine.