How should I resolve this problem? Thank you. I then tried to downgrade VirtaulBox by installing older versions, but alway got the same error message when I tried to install Extension Pack for it.

VBoxManage: error: Context: 'RTEXITCODE handleExtPack(HandlerArg *)' at line 1211 of file VBoxManageMisc.cpp VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component ExtPackManagerWrap, interface IExtPackManager Click the add icon to install VirtualBox Extension Pack. Open Launchpad, run VirtualBox, then go to Tools > Preferences and select the Extensions tab.

VBoxManage: error: /Applications/VirtualBox.app/Contents/MacOS/ExtensionPacks/Oracle_VM_VirtualBox_Extension_Pack/darwin.amd64/VBoxPuelMain.dylib: code signature invalid for '/Applications/VirtualBox.app/Contents/MacOS/ExtensionPacks/Oracle_VM_VirtualBox_Extension_Pack/darwin.amd64/VBoxPuelMain.dylib' The process of Installing VirtualBox Extension Pack on macOS is quite similar to that required for the extension pack on other operating systems.

VBoxManage: error: Failed to load the main module ('/Applications/VirtualBox.app/Contents/MacOS/ExtensionPacks/Oracle_VM_VirtualBox_Extension_Pack/darwin.amd64/VBoxPuelMain.dylib'): VERR_FILE_NOT_FOUND - dlopen(/Applications/VirtualBox.app/Contents/MacOS/ExtensionPacks/Oracle_VM_VirtualBox_Extension_Pack/darwin.amd64/VBoxPuelMain.dylib, 6): no suitable image found. VBoxManage: error: Failed to install '/Users/xxx/Downloads/Oracle_VM_VirtualBox_Extension_Pack-6.1.8.vbox-extpack'

Virtualbox extension pack mac