During installation, ArchiveOne unzips the required installation files from the user’s temporary data directory (%temp%) in their user profile to C:\ProgramData\Barracuda\ArchiveOne\Package. If this action fails, the following error displays:
"Installation step 'Unpack installation files' failed with message 'There was a problem while trying to unpack package file: <filename>.aonepkg'"
where <filename> is the name of the source file.
To ensure that you are running the ArchiveOne installer with administrative rights, right-click and select run as administrator. It is recommended that the installing user is a domain administrator; see Step 1 - Prepare for Installation for more information on required permissions for the installing user. Additionally, check that any antivirus installed on the Archive server is not interfering with the installer activities but either creating a suitable exclusion, or temporarily disabling scanning, to confirm if this responsible for the error.