For PC
See Install operation completed with errors - User did not grant permission
For Mac
First make sure there is no pending update for your Wwise Launcher and that you have tried rebooting your Mac.
Then, make sure you are installing to a location for which the logged-in user has write access to, and that your user is an Administrator. When starting the installation, a "WwiseLauncher Password Prompt" should appear.
Failure to enter valid credentials or this prompt not appearing due to internal failure is the cause of the "User did not grant permission" error.
If this prompt does not appear, there are additional steps you can take to identify the issue.
Open Terminal.app and attempt to run the following command, which should trigger a password prompt:
osascript -e 'do shell script "echo foo" with administrator privileges'
If, instead of the above mentioned password prompt, you get the following message:
osascript: can't open default scripting component.
It indicates something is preventing the Apple Script to execute, which is likely also the cause why the Wwise Launcher isn't able to show the password prompt.
You can find out what component is blocking this feature by running:
sudo dtruss -n osalang -t open
In the terminal and looking at the output, a list of components causing the issue should be listed.
Removing those components (users have reported problematic components coming from /Library/Audio/Plug-Ins/Components) should allow to trigger the prompt properly when running the osascript command mentioned above, and by extension should allow the Wwise Launcher to show the prompt as well.
If you are unable to trigger the prompt after following these steps, contact Customer Support.