Kap: "Kap" can't be opened because the identity of the developer cannot be confirmed. | after brew install

[RayBB]

macOS version: 10.13.6
Kap version: 3.2.2

Steps to reproduce

1. brew cask install kap
2. Try to open the app

I don't have the open to "open anyway" in my settings so it seems as though I just can't use the app.

Current behaviour

App won't open

Expected behaviour

App opens

Screenshot:

[skllcrn]

We have had reports of issues with installations via Homebrew Cask in the past, while we take another look, are you able to download and open it as expected via getkap.co?

[RayBB]

I only tried homebrew after downloading the dmg had the same issue.

[karaggeorge]

Can you try right-click -> open? Sometimes that helps

[RayBB]

Just tried and that didn't help

[stevelacy]

@RayBB Can you uninstall then re-install and post the raw brew logs?

brew uninstall kap
brew cask install kap

Especially the downloading source url

[RayBB]

RaymBe3-SYS:~ 2$ brew cask uninstall kap
==> Uninstalling Cask kap
==> Backing App 'Kap.app' up to '/usr/local/Caskroom/kap/3.2.2/Kap.app'.
==> Removing App '/Applications/Kap.app'.
==> Purging files for version 3.2.2 of Cask kap
RaymBe3-SYS:~ 2$ brew cask install kap
==> Downloading https://github.com/wulkano/kap/releases/download/v3.2.2/Kap-3.2.
Already downloaded: /Users/210118/Library/Caches/Homebrew/downloads/219efe4e664569aaad7578e4874d885f28a1e93ecd1072f6599d14e66af807e9--Kap-3.2.2.dmg
==> Verifying SHA-256 checksum for Cask 'kap'.
==> Installing Cask kap
==> Moving App 'Kap.app' to '/Applications/Kap.app'.
🍺  kap was successfully installed!

Verbose output

brew cask install --verbose  kap
==> Downloading https://github.com/wulkano/kap/releases/download/v3.2.2/Kap-3.2.
Already downloaded: /Users/210118/Library/Caches/Homebrew/downloads/219efe4e664569aaad7578e4874d885f28a1e93ecd1072f6599d14e66af807e9--Kap-3.2.2.dmg
==> Verifying SHA-256 checksum for Cask 'kap'.
==> Installing Cask kap
hdiutil attach -plist -nobrowse -readonly -noidme -mountrandom /var/folders/gv/vzm7h6gn5fz7fhbjxxqgdvbszggyhy/T/d20200508-26067-1mbjutu /Users/210118/Library/Caches/Homebrew/downloads/219efe4e664569aaad7578e4874d885f28a1e93ecd1072f6599d14e66af807e9--Kap-3.2.2.dmg
mkbom -s -i /var/folders/gv/vzm7h6gn5fz7fhbjxxqgdvbszggyhy/T/20200508-26067-punz6x.list -- /var/folders/gv/vzm7h6gn5fz7fhbjxxqgdvbszggyhy/T/20200508-26067-1i4d0f3.bom
ditto --bom /var/folders/gv/vzm7h6gn5fz7fhbjxxqgdvbszggyhy/T/20200508-26067-1i4d0f3.bom -- /private/var/folders/gv/vzm7h6gn5fz7fhbjxxqgdvbszggyhy/T/d20200508-26067-1mbjutu/dmg.q6UNy4 /var/folders/gv/vzm7h6gn5fz7fhbjxxqgdvbszggyhy/T/d20200508-26067-132x51q
diskutil eject /private/var/folders/gv/vzm7h6gn5fz7fhbjxxqgdvbszggyhy/T/d20200508-26067-1mbjutu/dmg.q6UNy4
cp -pR /var/folders/gv/vzm7h6gn5fz7fhbjxxqgdvbszggyhy/T/d20200508-26067-132x51q/Kap.app/. /usr/local/Caskroom/kap/3.2.2/Kap.app
chmod -Rf +w /var/folders/gv/vzm7h6gn5fz7fhbjxxqgdvbszggyhy/T/d20200508-26067-132x51q
==> Moving App 'Kap.app' to '/Applications/Kap.app'.
🍺  kap was successfully installed!

[stevelacy]

Thanks, and can you get the sha of the binary?

shasum /Users/210118/Library/Caches/Homebrew/downloads/219efe4e664569aaad7578e4874d885f28a1e93ecd1072f6599d14e66af807e9--Kap-3.2.2.dmg

[RayBB]

a8f1e627b2ee12c2c812cdb6a7a70f67bf3edf28  /Users/210118/Library/Caches/Homebrew/downloads/219efe4e664569aaad7578e4874d885f28a1e93ecd1072f6599d14e66af807e9--Kap-3.2.2.dmg

[stevelacy]

Quick workaround is to try opening the binary again then go to System Preferences > Security & Privacy and then allow Kap to run with Open Anyway

[RayBB]

I would do that but I don't have that option. I suspect it's due to my this work computer being locked down for security. Anyway, this isn't a rush for me personally but wanted to flag it in case it's going to be an issue for others too.

[renatoagds]

I have the same problem, workaround it opening Kap from terminal:

alias kap="~/Applications/Kap.app/Contents/MacOS/Kap"