Acronis True Image 2019 on Mac: how to grant full disk access on Mojave

Symptoms

1. Your Mac is running macOS Mojave (10.14)

2. Backups fail with the following error:

    Failed to enumerate directory 'Macintosh HD:/Library/Application Support/com.apple.TCC/'. It may be corrupted or does not exist.

   OR

   You receive the following message:

   Grant full disk access to Acronis True Image

Cause

Acronis True Image requires full disk access permissions in order to back up your data.

Solution

1. Open Security & Privacy

2. Click the "lock" button to allow changes

3. Drag the application icon from the window requesting to grant Full Disk Access to the Full Disk Access table