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Android Build a Simple Android App (retired 2014) Shaking Things Up The Activity Lifecycle

Posted by Nicholas Nadel
Nicholas Nadel
454 Points

Cannot be resolved or is not a field.

I've been experiencing major errors since adding the shake detector. I've downloaded the project files directly from the course to make sure I had no simple errors of my own doing.

I've been lurking in the Treehouse forums and StackOverflow to no avail.

It seems I've finally solved the import.R errors I'd been receiving all week. Now, I can't get past the following errors:

Description Resource    Path    Location    Type
imageView1 cannot be resolved or is not a field MainActivity.java   /CrystalBall/src/com/example/crystalball    line 36 Java Problem
Project 'android-support-v7-gridlayout' is missing required source folder: 'gen'    android-support-v7-gridlayout       Build path  Build Path Problem
Unable to resolve target 'android-17' until the SDK is loaded.  android-support-v7-mediarouter      Unknown Android Target Problem
textView1 cannot be resolved or is not a field  MainActivity.java   /CrystalBall/src/com/example/crystalball    line 35 Java Problem
activity_main cannot be resolved or is not a field  MainActivity.java   /CrystalBall/src/com/example/crystalball    line 32 Java Problem
Unable to resolve target 'android-19' until the SDK is loaded.  appcompat_v7        Unknown Android Target Problem
The project cannot be built until build path errors are resolved    android-support-v7-gridlayout       Unknown Java Problem
Unable to resolve target 'android-7' until the SDK is loaded.   android-support-v7-gridlayout       Unknown Android Target Problem
action_settings cannot be resolved or is not a field    MainActivity.java   /CrystalBall/src/com/example/crystalball    line 105    Java Problem
main cannot be resolved or is not a field   MainActivity.java   /CrystalBall/src/com/example/crystalball    line 95 Java Problem
Unable to resolve target 'android-7'    android-support-v7-gridlayout       Unknown Android Target Problem
crystal_ball cannot be resolved or is not a field   MainActivity.java   /CrystalBall/src/com/example/crystalball    line 80 Java Problem
ball_animation cannot be resolved or is not a field MainActivity.java   /CrystalBall/src/com/example/crystalball    line 63 Java Problem

Will this class continue to be updated with solutions (such as with the theme error in "Adding an Image")?

2 Answers

Daniel Hartin
Daniel Hartin
18,106 Points
Daniel Hartin
Daniel Hartin
18,106 Points

Not sure if it's connected or not! but there is a fault with the android plug-in version 2.3 (if you've updated your tools using the SDK manager) I kept getting similar messages when nothing was wrong with my code. I had to re-download the ADT bundle from the link attached to the android video in building a simple android app and re-install after removing all old ADT files.

Ben Jakuben
STAFF
Ben Jakuben
Treehouse Teacher
Ben Jakuben
Ben Jakuben
Treehouse Teacher

Sorry for your trouble, and sorry I missed this! I'm working on an update now that takes into account a few things from the latest release of Android (currently in beta). It sounds like something is off with your project automatically importing the Android support library. Can you zip up your project and send it to help@teamtreehouse.com? I'll take a look and let you know in here what the fix is.