Extension Creation Help

I would like to know if there is someone who knows how to create extensions can help me creating an extension based on a tutorial I found, the extension consists of a screen reader or a Google result identifier, itself that can obtain the text that appears in the results of google to be able to take that text and play it back with the text-to-speech component.
I need help because I don't understand the programming language, so I don't know my mistakes or how to fix them, so if someone could help me create an extension I would be very grateful.

Why use an extension, if the problem can be replicated using built-in blocks?

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I will write a tutorial in the community and post it in my holiday. I already found out how to do that with built-in blocks.

Why did you post the same thing in multiple topics? You have asked to get Google's search results in 3 different topics.

Have you made use of these resources to help you learn to use the AI2 tools? A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook http://www.appinventor.org/book2 - the links are at the bottom of the Web page. The book 'teaches' users how to program with AI2 blocks. There is a free programming course here http://www.appinventor.org/content/CourseInABox/Intro and the aia files for the projects in the book are here: http://www.appinventor.org/bookFiles . How to do a lot of basic things with App Inventor are described here: http://www.appinventor.org/content/howDoYou/eventHandling . Also, look here http://kio4.com/appinventor/index.htm and here http://www.imagnity.com/tutorial-index/ for more tutorials. Learn about components http://ai2.appinventor.mit.edu/reference/components/
and visit the Library http://appinventor.mit.edu/explore/library Help > Library on the MENU.

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Read this tutorial and see what you can get without extensions.

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