I’ve been trying to uninstall PlatformIO via:
pip uninstall platformio
Skipping platformio as it is not installed.
sudo pip uninstall Platformio
The directory '/Users/rickyyang/Library/Caches/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag. Skipping platformio as it is not installed.
In vscode, try:
PlatformIO, version 3.6.1a4