Getting "It seems there is already an App at ..." even when trying to uninstall

[Apromixately]

Output of brew config

HOMEBREW_VERSION: 4.1.7
ORIGIN: https://github.com/Homebrew/brew
HEAD: d4444b563e24ac7c05a93121c464c02dfa04d44f
Last commit: 5 days ago
Core tap origin: https://github.com/Homebrew/homebrew-core
Core tap HEAD: d57a3e8393e451bf4a049bb11bd1437c360ee4be
Core tap last commit: 2 days ago
Core tap branch: master
Core tap JSON: 01 Sep 10:04 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_MAKE_JOBS: 10
Homebrew Ruby: 2.6.10 => /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby
CPU: 10-core 64-bit arm_firestorm_icestorm
Clang: 14.0.3 build 1403
Git: 2.42.0 => /opt/homebrew/bin/git
Curl: 8.1.2 => /usr/bin/curl
macOS: 13.5.1-arm64
CLT: 14.3.1.0.1.1683849156
Xcode: 14.3.1
Rosetta 2: false

Output of brew doctor

Warning: You have unlinked kegs in your Cellar.
Leaving kegs unlinked can lead to build-trouble and cause formulae that depend on
those kegs to fail to run properly once built. Run `brew link` on these:
  python-certifi
  six

Warning: You have an unnecessary local Cask tap.
This can cause problems installing up-to-date casks.
Please remove it by running:
  brew untap homebrew/cask

Warning: You have an unnecessary local Core tap!
This can cause problems installing up-to-date formulae.
Please remove it by running:
 brew untap homebrew/core

Description of issue

Trying to run pgadmin4 it says it is incomplete or damaged. Trying to upgrade or even uninstall gives: Error: pgadmin4: It seems there is already an App at '/opt/homebrew/Caskroom/pgadmin4/7.4/pgAdmin 4.app'.

What is going on or what am I supposed to do here?

Relevant casks

pgadmin4

[Makki93]

I have the same issue. Can you open up an official issue? Not only a discussion?
Not only for pgadmin, but other apps, like pomatez.

[tony19]

I ran into the same problem (running Homebrew 4.1.19) after aborting a brew --cask installation, which left that app "half-installed".

Trying to uninstall via brew resulted in the error you've mentioned. The trick that worked for me was to use the --force flag:

brew remove --force --cask <CASK_NAME>

That changed the error into a warning and proceeded with the clean uninstall.

BEFORE:

$ brew remove phoenix
==> Uninstalling Cask phoenix
==> Removing login item /Applications/Phoenix.app
==> Removing login item Phoenix
Error: It seems there is already an App at '/opt/homebrew/Caskroom/phoenix/4.0.0/Phoenix.app'.

AFTER:

                 👇
$ brew remove --force phoenix
==> Uninstalling Cask phoenix
==> Removing login item /Applications/Phoenix.app
==> Removing login item Phoenix
Warning: It seems there is already an App at '/opt/homebrew/Caskroom/phoenix/4.0.0/Phoenix.app'; overwriting.
==> Removing App '/opt/homebrew/Caskroom/phoenix/4.0.0/Phoenix.ap
==> Purging files for version 4.0.0 of Cask phoenix