Cannot generate R File-Android

Question

I am a beginner to android development and at the very first step I am having problems in generating R.java.I tried all the possible solutions to generate R.java still haven't been successful.I tried removing android.R import as well as checked all the XMLs for the case and still haven't found any strong reason for its suicide.My directory structure is as follows:

enter image description here

The thing is even if i create a new project it is created with the R errors and the new project is not equipped with R.java

My activity_mail.xml file is as follows

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />

</RelativeLayout>

My AndroidManfiest.xml file is

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.autorespond"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.autorespond.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

All the xml files are the default files without any changes.

try to clean and build project..,and delete it from workspace and import againg — rajshree, Feb 25 '14 at 07:48
maybe you have an error on `xml` file, check those if cleaning not worked for you — Shayan Pourvatan, Feb 25 '14 at 07:50
Most of the time console gives you the idea why R file is not generating... So read your console carefully — Pramod, Feb 25 '14 at 07:50
Clean your Project or select build automatically from Project Menu — Naveed Ahmad, Feb 25 '14 at 07:50
see this. [link][1] [1]: http://stackoverflow.com/questions/2757107/developing-for-android-in-eclipse-r-java-not-generating here you will get solution of your question. — rajshree, Feb 25 '14 at 07:55
The thing is even if i create a new project it is created with the R errors and the new project is not equipped with R.java already — log N, Feb 25 '14 at 08:19
After creation of project have you change target version, if yes then there might be some issue with values folder, your project might contain some error thats why r.java is not creating automatically — Shaji Thorn Blue, Feb 25 '14 at 08:37

Sheraz Ahmad Khilji · Answer 1 · 2014-02-25T08:25:02.603

1

R.Java file is not generated when you have errors in XML try to solve them first then it will be generated.

If it doesn't try restarting eclipse.

If this is the case with even the new projects that you create. Then you should double check whether the Build Automatically option in the Project menu is checked. If its not checked then check it.

edited Feb 25 '14 at 08:25

answered Feb 25 '14 at 08:03

Sheraz Ahmad Khilji

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I didn't find any mischief in my XML file and even eclipse is not pointing to any error on it.Restarting also didn't work for me. – log N Feb 25 '14 at 08:09
@Nilesh Did u try restarting adb ? – Sheraz Ahmad Khilji Feb 25 '14 at 08:22
Wait I will give it a try now. – log N Feb 25 '14 at 08:23
It didn't work either.Yeah my build automatically is checked.Can there be some problem in the plugin?I just installed the android development tools from the market place and I pointed it to adt bundle.Is there something else I need to get from the marketplace? – log N Feb 25 '14 at 08:26
No i don't think there is anything else you need other than the JDK and Android SDK. Have you tried creating new Android project in eclipse. Does it give the same error? – Sheraz Ahmad Khilji Feb 25 '14 at 08:55
yeah a new project is atached with the same error without the R file. – log N Feb 25 '14 at 09:43
Check this answer here. May be this might help http://stackoverflow.com/a/16642869/1118886 – Sheraz Ahmad Khilji Feb 25 '14 at 13:30

score 0 · Answer 2 · edited Feb 25 '14 at 11:00

0

It will generate automatically, Just go to Project menu in eclipse and select clean option from it. then again from Project menu select Build your project, or press Ctrl+B. It will build your project. and you can get rid of this error.

edited Feb 25 '14 at 11:00

vahid abdi

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answered Feb 25 '14 at 07:50

InnocentKiller

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Tried this solution but didn't work for me. – log N Feb 25 '14 at 08:00

score 0 · Answer 3 · edited May 23 '17 at 11:43

0

This stackoverflow question should answer your question.

Developing for Android in Eclipse: R.java not regenerating

Check build automatically feature. Check if you have Uppercase letter or spaces in any file in res folder. If everything is fine then it should not give such errors.

Can you post your XML file ? I can have a look.

edited May 23 '17 at 11:43

Community

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answered Feb 25 '14 at 08:33

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Cannot generate R File-Android

3 Answers3