Ensure that you download the file correctly. The hash of file BM-OSX-WICED-Studio-188.8.131.52-IDE-Installer.app.zip using algorithm SHA256 is: 203C094EE38344E703D74FBD578D08638122E8B5855DD2E25E19F62E41F1E09A.
Then follow the KBA WICED-Studio 6.6.0 (OSX) and don't miss the details.
that is what I did....
Finally I was making it by following one note in the Release Notes: WICED Studio 6.6.0
Under point 4 Known Issues your find the following, which helped to overcome the issue:
- Starting MacOS Catalina, to install WICED Studio, the user has to modify the security settings to Allow apps downloaded from “App Store and identified developers”. Open terminal window navigate to the path where the installer is located and execute the following commands:
>chmod +x WICED-Studio-6.6.0xxxx.app/Contents/MacOS/*