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POAndroid Project - R cannot be resolved or is not a field
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  1. POAndroid Project - R cannot be resolved or is not a field
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    copied!<p>I've been working on an android project, but a really annoying error is killing me: "R cannot be resolved or is not a field". Well, there's many questions who got answers, but everything I tried for now doesn't work: clean project, destroy R.java &amp; clean project, import x.y.z.R; and destroy any import android.R;... but it's still there. Will you be able to help me?</p> <p>Here comes the code where the error occurs (ListArretsActivity.java):</p> <pre><code>package com.example.onetantan; import java.util.ArrayList; import com.example.onetantan.rest.Arret; import com.example.onetantan.rest.ArretRestMethod; import com.example.onetantan.rest.ListArret; import com.example.onetantan.R; import android.app.ListActivity; import android.content.Context; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.AsyncTask; import android.os.Bundle; import android.util.Log; import android.view.Menu; public class ListArretsActivity extends ListActivity { ... // Code that doesn't seemed revelant, for me, for the error given class MyAsyncTask extends AsyncTask&lt;Void, Void, Void&gt; { @Override protected Void doInBackground(Void... paramArrayOfParams) { ArretRestMethod arm = new ArretRestMethod(ListArretsActivity.this.R); return null; } } ... // Code that doesn't seemed revelant, for me, for the error given } </code></pre> <p>Here comes a code where there's no problem... (ArretAdapter.java):</p> <pre><code>package com.example.onetantan; import java.util.List; import com.example.onetantan.rest.Arret; import com.example.onetantan.R; import android.content.Context; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.TextView; public class ArretAdapter extends BaseAdapter { private static String LOG_TAG="ArretAdapter"; private Context mContext; private List&lt;Arret&gt; mListArret; private LayoutInflater inflater; public ArretAdapter(Context p_oContext, List&lt;Arret&gt; p_oListArret){ super(); mContext = p_oContext; mListArret = p_oListArret; this.inflater = LayoutInflater.from(mContext); } ... // Code that doesn't seemed revelant, for me, for the error given @Override public View getView(int p_iPosition, View p_oConvertView, ViewGroup p_oParentView) { if (p_oConvertView == null) { p_oConvertView = inflater.inflate(R.layout.arret_item, null); } ((TextView)(p_oConvertView.findViewById(R.id.name))).setText("Heure"); ((TextView)(p_oConvertView.findViewById(R.id.dist))).setText("Heure"); return p_oConvertView; } ... // Code that doesn't seemed revelant, for me, for the error given } </code></pre> <p>And for finishing, a picture of my package explorer for src &amp; gen folders. Wanted to post an image, but doesn't have enough reputation since I'm a new user, so here goes a link : <a href="http://img217.imageshack.us/img217/5511/tosend.png" rel="nofollow">http://img217.imageshack.us/img217/5511/tosend.png</a></p> <p>It's been a week since I haven't been able to do a thing... maybe is something too obvious that I don't see, or a serious problem, but I really need your help.</p> <p>Thanks in advance for any answers you can give me (even if it's answers from other problems that I've tried three times, I'll try again if needed).</p> <p>EDIT: One of your answers was to check my xml files for any error. But Eclipse doesn't send back any error and I don't see any (I'm not experimented at all... :/ ). In my res>layout folder: arret_item.xml:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" &gt; &lt;TextView android:id="@+id/name" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TextView" /&gt; &lt;TextView android:id="@+id/dist" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TextView" /&gt; &lt;/LinearLayout&gt; </code></pre> <p>In my res>layout folder: arret_item.xml:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;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" tools:context=".ListArretsActivity" &gt; &lt;TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_centerVertical="true" android:text="@string/hello_world" /&gt; &lt;/RelativeLayout&gt; </code></pre> <p>These are the only two .xml files in my res.layout that I may be edited.</p> <p>EDIT 2: Running Android Lint, it only returns me warnings:</p> <p>Not targeting the latest versions of Android; comptability modes apply. .gif format for bitmaps is discouraged (64 items) Found bitmap drawable res/drawable/l_1.gif in densityless folder (68 items) The ressource R.drawable.l_1 appears to be unused (70 items)</p> <p>I corrected right away the first one since I'm working on API 17 (Android 4.2), and my manifest was on 16. But it doesn't correct my error.</p> <p>For the 3 other warnings, it's normal since I don't use them for the moment an I was given the project with these.</p> <p>Well, here comes my AndroidManifest.xml since I edited it:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.onetantan" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" /&gt; &lt;application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" &gt; &lt;activity android:name="com.example.onetantan.ListArretsActivity" android:label="@string/app_name" &gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;/application&gt; &lt;/manifest&gt; </code></pre> <p>Answer: Sorry everyone, there's a code I haven't given and it's ArretRestMethod.java. If I've given you this one, you'll maybe understand:</p> <pre><code>package com.example.onetantan.rest; import ... public class ArretRestMethod { private static String LOG_TAG="ArretRestMethod"; Context mContext=null; public ArretRestMethod(Context context) { mContext = context.getApplicationContext(); } ... } </code></pre> <p>One of my friends pointed me out for the line in ListArretsActivity.java</p> <pre><code>ArretRestMethod arm = new ArretRestMethod(ListArretsActivity.this.R); </code></pre> <p>must be written like this:</p> <pre><code>ArretRestMethod arm = new ArretRestMethod(ListArretsActivity.this); </code></pre> <p>Free whips will be given to anyone who want to give me a punishment... :x (I'm ashamed that I didn't saw this... sorry everyone. But I have learned at least some things by asking there.)</p>
 

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