New Application Starting error

[venu]

I have installed freecad on KDE and I could not able start the program and getting this error when I try to open in shell prompt.
same happens with libreoffice also
following error is thrown out.

reecad: /usr/lib/libstdc++.so.6: version GLIBCXX_3.4.29' not found (required by /usr/lib/freecad/lib/libFreeCADGui.so) freecad: /usr/lib/libstdc++.so.6: version GLIBCXX_3.4.29' not found (required by /usr/lib/freecad/lib/libFreeCADApp.so)
freecad: /usr/lib/libstdc++.so.6: version GLIBCXX_3.4.29' not found (required by /usr/lib/freecad/lib/libFreeCADBase.so) freecad: /usr/lib/libstdc++.so.6: version GLIBCXX_3.4.29' not found (required by /usr/lib/libshiboken2.cpython-39-x86_64-linux-gnu.so.5.15)
freecad: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.29' not found (required by /usr/lib/libboost_program_options.so.1.76.0)

[dr460nf1r3]

Hey there
You probably tried to install the applications without updating the system first. This is called a partial upgrade situation and should be avoided

sudo pacman -Syu freecad

Updates & installs the application for you.

[anon72786180]

Looks a little like the wrong libraries are installed, or not installed at all.
Make sure the pacman database up to date, and all is updated:

sudo pacman -Syyu

Then try them out. If the apps still won't launch, try re-installing:

sudo pacman -S [package]

(Where [package] is replaced by the package name of the app you want to re-install)

[venu]

I am getting this error when I try to pass the command
sudo pacman -Syyu

(482/482) checking keys in keyring [------------------------------------] 100%
downloading required keys...
:: Import PGP key 0706B90D37D9B881, "Pedro Henrique Lara Campos root@pedrohlc.com"? [Y/n] y
(482/482) checking package integrity [------------------------------------] 100%
error: beautyline: key "45ECA705E3897524654A37880706B90D37D9B881" is unknown
:: Import PGP key 45ECA705E3897524654A37880706B90D37D9B881? [Y/n] y
error: key "45ECA705E3897524654A37880706B90D37D9B881" could not be looked up remotely
:: File /var/cache/pacman/pkg/beautyline-20210621-1-any.pkg.tar.zst is corrupted (invalid or corrupted package
(PGP signature)).
Do you want to delete it? [Y/n] y
error: downgrade: key "45ECA705E3897524654A37880706B90D37D9B881" is unknown
:: Import PGP key 45ECA705E3897524654A37880706B90D37D9B881? [Y/n]
error: key "45ECA705E3897524654A37880706B90D37D9B881" could not be looked up remotely
:: File /var/cache/pacman/pkg/downgrade-10.1.0-1-any.pkg.tar.zst is corrupted (invalid or corrupted package (P
GP signature)).
Do you want to delete it? [Y/n]

[anon72786180]

Issues with “signature is marginal trust”, "signature is unknown trust", or “invalid or corrupted package”

If you're getting an error similar to "Can’t update: signature from *** is marginal trust" or "invalid or corrupted package" you probably just need to update your package signing keys: sudo pacman -Sy archlinux-keyring chaotic-keyring sudo pacman -Syu If you have added any other repositories, e.g. BlackArch, then add their keyring to the list. Also make sure your system clock is correct! Of course, it's also possible that the package file actually is corrupt. Remove it from /var/cache/pacman…

[venu]

A big thank you Catra.

After removing it from /var/cache/pacman/pkg/ and fired sudo pacman -Syu it's working fine