Hi solehudin04165szm88, welcome to Thunkable! 
Be sure to check out How to ask Great Questions v2.0, the Community Guidelines, and our Getting Started Guide to make the best of your Thunkable Community experience!
Could you explain a little more about what GPG is? In general, it is not supported to update packages within Thunkable once they are downloaded or published.
We do not have a way to import any projects from AppGyver.