# Description of problem:

I was having problem with the package stacer (Stacer System Optimizer & Monitor) from Fedora EPEL.


After I installed stacer on my Red Hat Enterprise Linux 8, using this command: "sudo dnf install stacer", when I open stacer using Gnome Shell, nothing happens.

When I open the terminal and type the command: 'stacer' the following message appears: 

"
stacer: error while loading shared libraries: libQt5Charts.so.5: cannot open shared object file: No such file or directory
"

I searched the internet and found that the library libQt5Charts.so.5 was missing, and to fix it I had to install the package qt5-qtcharts.x86_64.
Reference:
https://github.com/oguzhaninan/Stacer/issues/187#issuecomment-374956787-permalink:~:text=%40caramello3469%20you%20can%20specify%20the%20architecture%20of%20the%20package%20that%20you%20prefer%20to%20install%2C%20try%20to%20install%20the%20package%20qt5%2Dqtcharts.x86_64%20to%20install%20the,latest%2064%2Dbit%20release%20of%20the%20package.,-1

So I did it typing the following command: "sudo dnf install qt5-qtcharts.x86_64"

So my problem was solved, but I believe that something is wrong with the package stacer because during its installation it should download and install its dependencies too. 

But when I type the following command: "sudo dnf deplist stacer" this is the output:

"
Updating Subscription Management repositories.
Last metadata expiration check: 3:15:30 ago on Fri 26 Feb 2021 11:36:05 -03.
package: stacer-1.1.0-9.el8.x86_64
  dependency: hicolor-icon-theme
   provider: hicolor-icon-theme-0.17-2.el8.noarch
  dependency: libGL.so.1()(64bit)
   provider: libglvnd-glx-1:1.2.0-6.el8.x86_64
  dependency: libQt5Charts.so.5()(64bit)
   provider: qt5-qtcharts-5.12.8-1.el8.x86_64
  dependency: libQt5Charts.so.5(Qt_5)(64bit)
   provider: qt5-qtcharts-5.12.8-1.el8.x86_64
  dependency: libQt5Concurrent.so.5()(64bit)
   provider: qt5-qtbase-5.12.5-6.el8.x86_64
  dependency: libQt5Core.so.5()(64bit)
   provider: qt5-qtbase-5.12.5-6.el8.x86_64
  dependency: libQt5Core.so.5(Qt_5)(64bit)
   provider: qt5-qtbase-5.12.5-6.el8.x86_64
  dependency: libQt5Core.so.5(Qt_5.12)(64bit)
   provider: qt5-qtbase-5.12.5-6.el8.x86_64
  dependency: libQt5Gui.so.5()(64bit)
   provider: qt5-qtbase-gui-5.12.5-6.el8.x86_64
  dependency: libQt5Gui.so.5(Qt_5)(64bit)
   provider: qt5-qtbase-gui-5.12.5-6.el8.x86_64
  dependency: libQt5Network.so.5()(64bit)
   provider: qt5-qtbase-5.12.5-6.el8.x86_64
  dependency: libQt5Network.so.5(Qt_5)(64bit)
   provider: qt5-qtbase-5.12.5-6.el8.x86_64
  dependency: libQt5Svg.so.5()(64bit)
   provider: qt5-qtsvg-5.12.5-1.el8.x86_64
  dependency: libQt5Widgets.so.5()(64bit)
   provider: qt5-qtbase-gui-5.12.5-6.el8.x86_64
  dependency: libQt5Widgets.so.5(Qt_5)(64bit)
   provider: qt5-qtbase-gui-5.12.5-6.el8.x86_64
  dependency: libc.so.6(GLIBC_2.14)(64bit)
   provider: glibc-2.28-127.el8_3.2.x86_64
  dependency: libgcc_s.so.1()(64bit)
   provider: libgcc-8.3.1-5.1.el8.x86_64
  dependency: libgcc_s.so.1(GCC_3.0)(64bit)
   provider: libgcc-8.3.1-5.1.el8.x86_64
  dependency: libgcc_s.so.1(GCC_3.3.1)(64bit)
   provider: libgcc-8.3.1-5.1.el8.x86_64
  dependency: libm.so.6()(64bit)
   provider: glibc-2.28-127.el8_3.2.x86_64
  dependency: libpthread.so.0()(64bit)
   provider: glibc-2.28-127.el8_3.2.x86_64
  dependency: libstdc++.so.6()(64bit)
   provider: libstdc++-8.3.1-5.1.el8.x86_64
  dependency: libstdc++.so.6(CXXABI_1.3)(64bit)
   provider: libstdc++-8.3.1-5.1.el8.x86_64
  dependency: libstdc++.so.6(CXXABI_1.3.1)(64bit)
   provider: libstdc++-8.3.1-5.1.el8.x86_64
  dependency: libstdc++.so.6(GLIBCXX_3.4)(64bit)
   provider: libstdc++-8.3.1-5.1.el8.x86_64
  dependency: rtld(GNU_HASH)
   provider: glibc-2.28-127.el8_3.2.x86_64
   provider: glibc-2.28-127.el8_3.2.i686
"

and the package qt5-qtcharts-5.12.8-1.el8.x86_64(libQt5Charts.so.5) was there. Then why stacer shown that error message?

Version-Release number of selected component (if applicable):

"
$ sudo dnf info stacer.x86_64
Name         : stacer
Version      : 1.1.0
Release      : 9.el8
Architecture : x86_64
Size         : 1.8 M
Source       : stacer-1.1.0-9.el8.src.rpm
Repository   : @System
From repo    : epel
Summary      : Linux system optimizer and monitoring
URL          : https://github.com/oguzhaninan/Stacer
License      : GPLv3+
Description  : Stacer is an open source system optimizer and application monitor
             : that helps users to manage entire system with different aspects,
             : its an all in one system utility.
"

"$ sudo dnf info qt5-qtcharts.x86_64
Updating Subscription Management repositories.
Last metadata expiration check: 0:25:38 ago on Fri 26 Feb 2021 15:05:24 -03.
Installed Packages
Name         : qt5-qtcharts
Version      : 5.12.8
Release      : 1.el8
Architecture : x86_64
Size         : 2.6 M
Source       : qt5-qtcharts-5.12.8-1.el8.src.rpm
Repository   : @System
From repo    : epel
Summary      : Qt5 - Charts component
URL          : http://www.qt.io
License      : GPLv3
Description  : Qt Charts module provides a set of easy to use chart components.
             : It uses the Qt Graphics View Framework, therefore charts can be
             : easily integrated to modern user interfaces. Qt Charts can be
             : used as QWidgets, QGraphicsWidget, or QML types. Users can easily
             : create impressive graphs by selecting one of the charts themes.
"

# Steps to Reproduce:

1. On a new installation of Red Hat Enterprise Linux 8, with Fedora Epel repository enabled type the following command:

"sudo dnf install stacer"

2. then, type this command:

"stacer"

3. then, (I hope) you will find that error message.