Pourquoi cette erreur est-elle survenue? java.lang.RuntimeException: ImageLoader doit être init avec la configuration avant d'utiliser

J'ai téléchargé un ImageDownloader code à partir de gitHub(à partir d'Ici)
Maintenant, quand je suis en train de télécharger l'image de mon webservice, je suis cette Exception Runtime "ImageLoader doit être init avec la configuration avant utilisation".

Je ne suis pas en mesure de le comprendre.

Et mon adaptateur:

public class CustomAdapter extends BaseAdapter 
{
private Context context;
private ArrayList<String> logo_URL;
private ListContent listContent;
private ArrayList< TeamDataClass> teamdata = null;
private ArrayList<EventDataClass> eventdata = null;
private DisplayImageOptions options;
private ImageLoader imageLoader;
public CustomAdapter(Context context,ArrayList<String> logo_URL,ArrayList<TeamDataClass> teamdata, ArrayList<EventDataClass> eventdata) 
{
this.context = context;
this.logo_URL = logo_URL;
this.teamdata = teamdata;
this.eventdata = eventdata;
options = new DisplayImageOptions.Builder()
.showImageForEmptyUri(R.drawable.image_for_empty_url)
.cacheOnDisc()
.imageScaleType(ImageScaleType.EXACT)
.build();
imageLoader= ImageLoader.getInstance();
} 
//@Override
public int getCount() 
{
return teamdata.size()/2;
}
//@Override
public Object getItem(int arg0) 
{
return arg0;
}
//@Override
public long getItemId(int arg0) 
{
return arg0;
}
//@Override
public View getView(int arg0, View convertview, ViewGroup arg2) 
{
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
if (convertview == null ) 
{
convertview = inflater.inflate(R.layout.custom_list_score, null);
listContent = new ListContent();
listContent.team_logo2 = (ImageView) convertview.findViewById(R.id.team_logo2);
listContent.team_logo1 = (ImageView) convertview.findViewById(R.id.team_logo1);
listContent.progress_team1=(ProgressBar)convertview.findViewById(R.id.progress_team_logo1);
listContent.progress_team2=(ProgressBar)convertview.findViewById(R.id.progress_team_logo2);
convertview.setTag(listContent);
}
else 
{
listContent = (ListContent) convertview.getTag();
}
listContent.status.setText(eventdata.get(arg0).status);
int pos=arg0*2;
imageLoader.displayImage(logo_URL.get(pos),listContent.team_logo1, options,new ImageLoadingListener() 
{
//@Override
public void onLoadingStarted()
{
listContent.progress_team1.setVisibility(View.VISIBLE);
}
//@Override
public void onLoadingFailed(FailReason failReason)
{
String message = null;
switch (failReason) 
{
case IO_ERROR:
message = "Input/Output error";
break;
case OUT_OF_MEMORY:
message = "Out Of Memory error";
break;
case UNKNOWN:
message = "Unknown error";
break;
}
Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
listContent.progress_team1.setVisibility(View.GONE);
listContent.team_logo1.setImageResource(android.R.drawable.ic_delete);
}
//@Override
public void onLoadingComplete(Bitmap loadedImage)
{
listContent.progress_team1.setVisibility(View.GONE);
Animation anim = AnimationUtils.loadAnimation(context, R.anim.fade_in);
listContent.team_logo1.setAnimation(anim);
anim.start();
}
//@Override
public void onLoadingCancelled()
{
//Do nothing
}
public void onLoadingComplete() {
}
}); 
imageLoader.displayImage(logo_URL.get(pos+1),listContent.team_logo2, options,new ImageLoadingListener() 
{
//@Override
public void onLoadingStarted()
{
listContent.progress_team2.setVisibility(View.VISIBLE);
}
//@Override
public void onLoadingFailed(FailReason failReason)
{
String message = null;
switch (failReason) 
{
case IO_ERROR:
message = "Input/Output error";
break;
case OUT_OF_MEMORY:
message = "Out Of Memory error";
break;
case UNKNOWN:
message = "Unknown error";
break;
}
Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
listContent.progress_team2.setVisibility(View.GONE);
listContent.team_logo2.setImageResource(android.R.drawable.ic_delete);
}
//@Override
public void onLoadingComplete(Bitmap loadedImage)
{
listContent.progress_team2.setVisibility(View.GONE);
Animation anim = AnimationUtils.loadAnimation(context, R.anim.fade_in);
listContent.team_logo2.setAnimation(anim);
anim.start();
}
//@Override
public void onLoadingCancelled()
{
//Do nothing
}
public void onLoadingComplete() {
}
}); 
return convertview;
}
private class ListContent
{
ImageView team_logo1, team_logo2;
ProgressBar progress_team1,progress_team2;
}
}

C'est mon logcat:

FATAL EXCEPTION: main
java.lang.RuntimeException: ImageLoader must be init with configuration before using
at com.nostra13.universalimageloader.core.ImageLoader.displayImage(ImageLoader.java:164)
at com.huskerit.score.CustomAdapter.getView(CustomAdapter.java:100)
at android.widget.HeaderViewListAdapter.getView(HeaderViewListAdapter.java:220)
at android.widget.AbsListView.obtainView(AbsListView.java:1554)
at android.widget.ListView.measureHeightOfChildren(ListView.java:1288)
at android.widget.ListView.onMeasure(ListView.java:1199)
at android.view.View.measure(View.java:8313)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1017)
at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:701)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:311)
at android.view.View.measure(View.java:8313)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1017)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:386)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:309)
at android.view.View.measure(View.java:8313)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:250)
at android.view.View.measure(View.java:8313)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3138)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:250)
at android.view.View.measure(View.java:8313)
at android.view.ViewRoot.performTraversals(ViewRoot.java:844)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1865)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(Native Method)

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