Step 2 '"--applicationpath" is deprecated in macOS 10.14 and greater."

[karlson12]

It seems it's what it say: deprecated.

It doesn't seem necessary, it works even with the error for me.

I don't know what it did, but here some hints about another option.

http://www.idownloadblog.com/2018/06/22/create-mojave-1014-installer-usb/

 

[Mison]

just add only one parameter --volume

sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/OSX

 

[cmn699]

just add only one parameter --volume

sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/OSX

• Please note the OP has tried both the deprecated and then the currently accepted command on the terminal and was still getting the error quoted by him and shown in the Terminal screen he has uploaded in #5
• In this case please note the second part of the Terminal output which says

  make sure that the macOS installer is in your Applications folder

  • This can happen if the command sees no macOS installer file in the Applications Folder
  • This can also happen if the MacOS Installer file the OP thought was good is actually a corrupted file.
    • To confirm a genuine and full macOS installer file, you can verify its Checksum value with published value
    • I have already suggested that with the shasum command to use in #8

 

[itwas]

How to create a bootable installer for macOS
https://support.apple.com/en-us/HT201372

Mojave:*

sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

High Sierra:*

sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

Sierra:

sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ macOS\ Sierra.app

El Capitan:

sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app