error with mainactivity.java

Question

Possible Duplicate:
R cannot be resolved to a variable - Hello World

I was developing my first app but get stuck on mainactivity.java.

Here is my code:

package com.nterface;

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

public class MainActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    /** Called when the user clicks the Send button */
    public void sendMessage(View view) {
        // Do something in response to button
    }

}

An error occurs on line setContentView(R.layout.activity_main);

Multiple markers at this line:

R cannot be resolved to a variable
Line breakpoint:MainActivity [line: 12]- onCreate(Bundle)

Generate the R file by clean your project from Project => Clean. — Dharmendra, Oct 09 '12 at 10:04
Search for the same question. there are many similar questions already exists in the StackOverflow. — Dharmendra, Oct 09 '12 at 10:07

score 1 · Answer 1 · answered Oct 09 '12 at 10:04

1

First Clean your project and then run.If not effected then Once restart your eclipse and clean the project and Run it. If not then go through the following link.

answered Oct 09 '12 at 10:04

Harish

3,122
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score 0 · Answer 2 · answered Oct 09 '12 at 09:58

0

You should import your R.java, it should be in com.nterface.R

answered Oct 09 '12 at 09:58

Nermeen

15,883
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R.java would be auto imported if it is in the same package. – Raghav Sood Oct 09 '12 at 10:33

error with mainactivity.java

2 Answers2