I use Lightroom 5 on my Acer PC. I have just bought a new camera, Canon PowerShot G7X, with Raw format possibility. I have also upgraded my Lightroom 5 to version 5.7. Still the application will not accept the RAW format pictures taken with this camera. Do I do something wrong, or does the latest version (5.7) not include the RAW format of Canon PowerShot G7X?
Yes your PowerShot G7 X is supported with LR 5.7. Would suggest you to make sure your Lr is up-to-date(From Help>Updates).
In case you still get that issue, try the below suggestions and check.
Let me know how it goes.