How to install shared libraries

Question

I have a problem with Cisco PacketTracer

https://www.netacad.com/courses/packet-tracer

wolf@linux:/opt/pt/bin$ ./PacketTracer7
./PacketTracer7: error while loading shared libraries: libQt5WebEngineWidgets.so.5: cannot open shared object file: No such file or directory
wolf@linux:/opt/pt/bin$

It turns out that some of the libraries are not there:

wolf@linux:/opt/pt/bin$ ldd PacketTracer7 | grep not
    libQt5WebEngineWidgets.so.5 => not found
    libQt5WebEngineCore.so.5 => not found
    libQt5Script.so.5 => not found
    libQt5ScriptTools.so.5 => not found
wolf@linux:/opt/pt/bin$

I've tried to install it, but it didn't work:

wolf@linux:/opt/pt/bin$ sudo apt install libQt5WebEngineWidgets.so.5 libQt5WebEngineCore.so.5 libQt5Script.so.5 libQt5ScriptTools.so.5
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package libQt5WebEngineWidgets.so.5
E: Unable to locate package libQt5WebEngineCore.so.5
E: Unable to locate package libQt5Script.so.5
E: Unable to locate package libQt5ScriptTools.so.5
wolf@linux:/opt/pt/bin$

I've also tried to change it to lower case and remove .so.5 from the name, but it still didn't work.

sudo apt install libQt5WebEngineWidgets.so libQt5WebEngineCore.so libQt5Script.so libQt5ScriptTools.so
sudo apt install libQt5WebEngineWidgets libQt5WebEngineCore libQt5Script libQt5ScriptTools
sudo apt install libqt5webenginewidgets libqt5webenginecore libqt5script libqt5scripttools

What is the right way to do this?

Update

This will install the first two libraries which are libQt5WebEngineWidgets.so.5 & libQt5WebEngineCore.so.5, but not the last two:

sudo apt install libqt5webenginewidgets5 libqt5webenginecore5

Two more libraries to be installed:

wolf@linux:/opt/pt/bin$ ldd ./PacketTracer7 | g not
    libQt5Script.so.5 => not found
    libQt5ScriptTools.so.5 => not found
wolf@linux:/opt/pt/bin$

Does this answer your question? How do I find the package that provides a file? — N0rbert, Oct 13 '20 at 04:16
@N0rbert, thanks but not at all ... I already know the path
wolf@linux:/opt/pt/bin$ dpkg -S PacketTracer7 packettracer: /opt/pt/bin/PacketTracer7 wolf@linux:/opt/pt/bin$ — , Oct 13 '20 at 05:14

mikewhatever · Answer 1 · 2020-10-13T16:47:25.840

Try this:

sudo apt install libqt5webenginecore5 libqt5webenginewidgets5 libqt5script5 libqt5scripttools5

It will pull a few more packages along.

I've used apt-cache to find those, for example, here are the first two

~$ apt-cache search libQt5Script
libqt5script5 - Qt 5 script module
libqt5scripttools5 - Qt 5 script tools module

...and the second two

~$ apt-cache search libQt5Script
libqt5script5 - Qt 5 script module
libqt5scripttools5 - Qt 5 script tools module

You can also combine two search words

apt-cache search 'libQt5WebEngine|libQt5Script'

Lastly, there is a searchable package database at https://packages.ubuntu.com/.

Thanks @mikewhatever. This install the first two. Another 2 libraries to be solved. I've updated my question with this info — , Oct 13 '20 at 03:31

score 2 · Accepted Answer · edited Oct 13 '20 at 16:23

2

The library's name must be correct; it's case sensitive too. Try this:

sudo apt install libqt5webenginewidgets5 libqt5webenginecore5 libqt5script5 libqt5scripttools5

Also, use the shell script provided. Do not run the ELF file directly. That won't work.

/opt/pt/packettracer

edited Oct 13 '20 at 16:23

Peter Mortensen

884

answered Oct 13 '20 at 03:38

1

Thanks. Solved libraries issue, but getting another error after that
https://askubuntu.com/questions/1283343/packet-tracer-7-3-1-in-ubuntu-20-04-symbol-lookup-error
– Oct 13 '20 at 05:29
Check the answer here.
https://askubuntu.com/a/1283474/1135027
– Oct 13 '20 at 15:05

How to install shared libraries

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