Tap package naming issue: Warning: apm-server-oss: No available formula with the name "apm-server".

[based2]

General troubleshooting steps

brew tap elastic/tap
brew install elastic/tap/apm-server-oss

[X ] I understand that if I ignore these instructions, my issue may be closed without review.
I have retried my command with --force.
I ran brew update-reset && brew update and retried my command.
I ran brew doctor, fixed as many issues as possible and retried my command.
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I made doubly sure this is not a checksum does not match error.

Description of issue

Warning: apm-server-oss: No available formula with the name "apm-server".
'conflicts_with "apm-server"' should be removed from apm-server-oss.rb.
Please report this issue to the elastic/tap tap (not Homebrew/brew or Homebrew/core)!
Command that failed

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Output of command with --verbose --debug

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Output of brew doctor --verbose

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Output of brew tap

==> Installing apm-server-oss from elastic/tap
==> Downloading https://artifacts.elastic.co/downloads/apm-server/apm-server-oss-7.10.2-darwin-x86_64.tar.gz?tap=elastic/homebrew-tap
######################################################################## 100.0%
Warning: apm-server-oss: No available formula with the name "apm-server".
'conflicts_with "apm-server"' should be removed from apm-server-oss.rb.
Please report this issue to the elastic/tap tap (not Homebrew/brew or Homebrew/core)!
==> Caveats
To have launchd start elastic/tap/apm-server-oss now and restart at login:
brew services start elastic/tap/apm-server-oss
Or, if you don't want/need a background service you can just run:
apm-server
==> Summary
🍺 /usr/local/Cellar/apm-server-oss/7.10.2: 10 files, 95.6MB, built in 3 seconds