Android default code error

Question

I am new to android development I have installed SDK in netbeans 7.1.1 . This is the default code which gets generated when i create a new android project in netbeans

package android.bug;

import android.app.Activity;
import android.os.Bundle;

public class MainActivity extends Activity
{
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
  }
}

Default code should be free from errors but i am getting an error in the last line i.e "setContentView(R.layout.main)"

 error is : package R does not exist

But when i import R package in the above code then i get a different error in the same line i.e "setContentView(R.layout.main)"

 error :cannot find symbol : main

score 2 · Accepted Answer · edited May 23 '17 at 11:55

2

you may have some errors in your res folder.

R.java is auto generated file. It wont create until you solve all your errors from res folder.

for example: error in main.xml

solve all errors, clean your project and

import yourpackagename.R;

see similar problem

edited May 23 '17 at 11:55

Community

1
1

answered Jul 27 '12 at 15:13

MAC

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This answer is good. It's a common error you may encounter during android app development. – Andy Res Jul 27 '12 at 15:17
are you able to find `R.java` in your project ? – MAC Jul 27 '12 at 15:30
@gtumca-MAC how to get R.java file ?? – rick Jul 27 '12 at 16:01

score 0 · Answer 2 · answered Jan 11 '13 at 13:15

I specified the android SDK folder in eclipse (Window - Preferences, Android SDK Location) without a trailing \ . So the path to aapt.exe tool was wrong (C:\android-sdk-windowsplatform-tools instead of C:\android-sdk-windows\platform-tools) and the resources not built.

score -1 · Answer 3 · edited May 23 '17 at 10:34

-1

Take a look at this question, it's pretty comprehensive for issues with R files: R cannot be resolved - Android error

Also, Eclipse is the recommended IDE for Android development, you may want to try it.

edited May 23 '17 at 10:34

Community

1
1

answered Jul 27 '12 at 15:14

Todd Davies

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Android default code error

3 Answers3