I have worked through the example in the SDK and am now receiving the following error when trying to run the demo app.
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.rythmair.licenseverification.MainActivity" on path: DexPathList[[zip file "/data/app/com.rythmair.licenseverification-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]] Here is my full MainActivity package com.rythmair.licenseverification; import android.app.Activity;import android.app.AlertDialog;import android.app.Dialog;import android.content.DialogInterface;import android.content.Intent;import android.net.Uri;import android.os.Bundle;import android.os.Handler;import android.provider.Settings;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.TextView; import com.google.android.vending.licensing.AESObfuscator;import com.google.android.vending.licensing.LicenseChecker;import com.google.android.vending.licensing.LicenseCheckerCallback;import com.google.android.vending.licensing.Policy;import com.google.android.vending.licensing.ServerManagedPolicy; public class MainActivity extends Activity { String tag = "LICENSE: "; private static final String BASE64_PUBLIC_KEY = "MY_KEY_REMOVED"; // Generate your own 20 random bytes, and put them here. private static final byte[] SALT = new byte[] { -46, 65, 30, -128, -103, -57, 74, -64, 51, 88, -95, -45, 77, -117, -36, -113, -11, 32, -64, 89 }; private TextView mStatusText; private Button mCheckLicenseButton; private LicenseCheckerCallback mLicenseCheckerCallback; private LicenseChecker mChecker; // A handler on the UI thread. private Handler mHandler; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Log.i(tag, "Just in onCreate method."); mStatusText = (TextView) findViewById(R.id.status_text); mCheckLicenseButton = (Button) findViewById(R.id.check_license_button); mCheckLicenseButton.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { doCheck(); } }); mHandler = new Handler(); Log.i(tag, "Just set mHandler to new Handler."); // Try to use more data here. ANDROID_ID is a single point of attack. String deviceId = Settings.Secure.getString(getContentResolver(), Settings.Secure.ANDROID_ID); // Library calls this when it's done. Log.i(tag, "Setting new mLicenseCheckerCallback"); mLicenseCheckerCallback = new MyLicenseCheckerCallback(); // Construct the LicenseChecker with a policy. Log.i(tag, "Setting mChecker variable."); mChecker = new LicenseChecker( this, new ServerManagedPolicy(this, new AESObfuscator(SALT, getPackageName(), deviceId)), BASE64_PUBLIC_KEY); doCheck(); } protected Dialog onCreateDialog(int id) { final boolean bRetry = id == 1; return new AlertDialog.Builder(this) .setTitle(R.string.unlicensed_dialog_title) .setMessage(bRetry ? R.string.unlicensed_dialog_retry_body : R.string.unlicensed_dialog_body) .setPositiveButton(bRetry ? R.string.retry_button : R.string.buy_button, new DialogInterface.OnClickListener() { boolean mRetry = bRetry; public void onClick(DialogInterface dialog, int which) { if ( mRetry ) { doCheck(); } else { Intent marketIntent = new Intent(Intent.ACTION_VIEW, Uri.parse( "http://market.android.com/details?id=" + getPackageName())); startActivity(marketIntent); } } }) .setNegativeButton(R.string.quit_button, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { finish(); } }).create(); } private void doCheck() { mCheckLicenseButton.setEnabled(false); setProgressBarIndeterminateVisibility(true); mStatusText.setText(R.string.checking_license); mChecker.checkAccess(mLicenseCheckerCallback); } private void displayResult(final String result) { mHandler.post(new Runnable() { public void run() { mStatusText.setText(result); setProgressBarIndeterminateVisibility(false); mCheckLicenseButton.setEnabled(true); } }); } private void displayDialog(final boolean showRetry) { mHandler.post(new Runnable() { public void run() { setProgressBarIndeterminateVisibility(false); showDialog(showRetry ? 1 : 0); mCheckLicenseButton.setEnabled(true); } }); } private class MyLicenseCheckerCallback implements LicenseCheckerCallback { public void allow(int policyReason) { if (isFinishing()) { // Don't update UI if Activity is finishing. return; } // Should allow user access. displayResult(getString(R.string.allow)); } public void dontAllow(int policyReason) { if (isFinishing()) { // Don't update UI if Activity is finishing. return; } displayResult(getString(R.string.dont_allow)); // Should not allow access. In most cases, the app should assume // the user has access unless it encounters this. If it does, // the app should inform the user of their unlicensed ways // and then either shut down the app or limit the user to a // restricted set of features. // In this example, we show a dialog that takes the user to Market. // If the reason for the lack of license is that the service is // unavailable or there is another problem, we display a // retry button on the dialog and a different message. displayDialog(policyReason == Policy.RETRY); } public void applicationError(int errorCode) { if (isFinishing()) { // Don't update UI if Activity is finishing. return; } // This is a polite way of saying the developer made a mistake // while setting up or calling the license checker library. // Please examine the error code and fix the error. String result = String.format(getString(R.string.application_error), errorCode); displayResult(result); } } @Override protected void onDestroy() { super.onDestroy(); mChecker.onDestroy(); } } Any assistance in helping me get this resolved would be greatly appreciated. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. To post to this group, send email to android-developers@googlegroups.com. Visit this group at https://groups.google.com/group/android-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/android-developers/8e2c8051-a25c-4a4b-8c25-0abbe120da02%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.