SQLiteDatabse giving unexpected errors

All files under my SQLite package are giving errors. As these are predefined classes and don't require or allow editing, I'm having a hard time making my project.

The codes are too long to be posted here. For instance, these imports in SQLiteDatabase.java are appearing in red:

import android.database.sqlite.SQLiteDebug.DbStats;
import dalvik.system.CloseGuard;

and my logcat shows the following errors:

 02-04 12:47:55.781 2666-2666/? E/AndroidRuntime: FATAL EXCEPTION: main
 02-04 12:47:55.781 2666-2666/? E/AndroidRuntime: android.database.sqlite.SQLiteException: no such table: user (code 1): , while compiling: select * from user
 02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:37)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1314)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1253)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at com.example.abcd.helloworld.DatabaseHelper.insertUser(DatabaseHelper.java:40)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at com.example.abcd.helloworld.SignUp$1.onClick(SignUp.java:52)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.view.View.performClick(View.java:4240)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.view.View$PerformClick.run(View.java:17721)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.os.Handler.handleCallback(Handler.java:730)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.os.Handler.dispatchMessage(Handler.java:92)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.os.Looper.loop(Looper.java:137)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at android.app.ActivityThread.main(ActivityThread.java:5103)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at java.lang.reflect.Method.invokeNative(Native Method)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at java.lang.reflect.Method.invoke(Method.java:525)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
02-04 12:47:55.781 2666-2666/? E/AndroidRuntime:     at dalvik.system.NativeStart.main(Native Method)

All coding done by me seems to be correct.

The code for table creation is:

 private static final int DATABASE_VERSION=1;
 private static final String DATABASE_NAME="user.db";
 private static final String TABLE_NAME="user";
 private static final String COLUMN_ID="id";
 private static final String COLUMN_NAME="name";
 private static final String COLUMN_EMAIL="email";
 private static final String COLUMN_UNAME="uname";
 private static final String COLUMN_PASS="pass";
 SQLiteDatabase db;
 private static final String TABLE_CREATE="create table user (id integer primary key autoincrement,"+
        "name text, email text, uname text, pass text);";
 public DatabaseHelper(Context context)
{
    super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
    db.execSQL(TABLE_CREATE);
    this.db = db;
}

public void insertUser(User u)
{
    db = this.getWritableDatabase();
    ContentValues values=new ContentValues();

    String query="select * from user";
    Cursor cursor= db.rawQuery(query, null);
    int count= cursor.getCount();
    values.put(COLUMN_ID, count);
    values.put(COLUMN_NAME, u.getName());
    values.put(COLUMN_EMAIL, u.getEmail());
    values.put(COLUMN_UNAME, u.getUname());
    values.put(COLUMN_PASS, u.getPass());

    db.insert(TABLE_NAME, null, values);

}

public String searchPass(String uname)
{
    db=this.getReadableDatabase();
    String query="select uname, pass from" +TABLE_NAME;
    Cursor cursor= db.rawQuery(query,null);
    String a,b;
    b="not found";
    if (cursor.moveToFirst())
    {
        do {
            a= cursor.getString(0);

            if (a.equals(uname))
            {
                b= cursor.getString(1);
                break;
            }
        }
        while(cursor.moveToNext());
    }
    db.close();
    return b;

}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
   String query= "DROP TABLE IF EXISTS"+ TABLE_NAME;
    db.execSQL(query);
    this.OnCreate(db);
}

private void OnCreate(SQLiteDatabase db) {
    db.execSQL(TABLE_CREATE);
    this.db = db;
}

}