This is the log. Unstable branch.
Preparing...
Synchronizing package databases...
Refreshing core.db...
Refreshing extra.db...
Refreshing community.db...
Refreshing multilib.db...
Refreshing core.files...
Refreshing extra.files...
Refreshing community.files...
Refreshing multilib.files...
Refreshing AUR...
Warning: installing openjpeg2 (2.5.0-1) breaks dependency 'openjpeg2=2.4.0' required by lib32-openjpeg2
Add lib32-openjpeg2 to remove
Error: Failed to prepare transaction:
could not satisfy dependencies:
- removing lib32-openjpeg2 breaks dependency 'lib32-openjpeg2' required by lib32-poppler
Resolving dependencies...
Checking inter-conflicts...
Error: Failed to prepare transaction:
could not satisfy dependencies:
- removing lib32-openjpeg2 breaks dependency 'lib32-openjpeg2' required by lib32-poppler
Edit build files : [e]
Apply transaction ? [e/y/N] N
Transaction cancelled.
$ sudo pacman -Suy
:: Synchronizing package databases...
core is up to date
extra is up to date
community is up to date
multilib is up to date
:: Starting full system upgrade...
resolving dependencies...
looking for conflicting packages...
error: failed to prepare transaction (could not satisfy dependencies)
:: installing openjpeg2 (2.5.0-1) breaks dependency 'openjpeg2=2.4.0' required by lib32-openjpeg2