R.id cannot be resolved [duplicate]

Answer 1

Also try deleting the ~.android\debug.keystore (Happened to me, thought it was due to R.id issue). Real problem was debug.keystore was older than a year!

Answer 2

On trying an Android beginner's tute (http://mobile.tutsplus.com/tutorials/android/android-sdk-development/) the "R.id cannot be resolved" error had me stumped too. In my case it was an android:onClick in /res/layout/main.xml. It seems onClick is not supported in AVD platform 1.5 API level 3.

A change to a new AVD with platform 1.6 API, level 6 removed the error - also started the project from scratch with the new api and level settings. For absolute Eclipse newbies (like myself) create a new AVD with:

Window -> Android SDK and AVD Manager -> New. Select platform, level number from "Target" drop down list.

Answer 3

I had the same problem but got fixed

i dont know exactly how this problem gonna fix

Just try, It might be helpful

add this code at the top of ur code

import com.MyFirstApp.activities.R;

here com.MyFirstApp.activties is my component name replace it with your component name

Answer 4

if you posted full your main.xml file, then it's not right. You must write a namespace of xml:

xmlns:android="http://schemas.android.com/apk/res/android"

for example:

<?xml version="1.0" encoding="utf-8"?>

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/label"
    android:layout_width="78dip"
    android:layout_height="65dip"
    android:paddingTop="4dip"
    android:textSize="12dip"
    android:singleLine="true"
    android:ellipsize="end"
    android:textColor="@color/bright_text_dark_focused"
    android:gravity="center_horizontal|center_vertical" />