java - Why do I keep getting this error(cannot be resolved)? -

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in 1 of classes getting error: game cannot resolved or not field, , when launch application says cannot open please try again, why keep getting error, there wrong r.java?

public class gameactivity extends activity {  grid myview;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     myview = new grid(this);     myview.setgame(new game());     setcontentview(myview); }  @override public boolean oncreateoptionsmenu(menu menu) {     // inflate menu; adds items action bar if present.     getmenuinflater().inflate(r.menu.game, menu);//error occurring here     return true; }}

r.java

/* auto-generated file.  not modify. * * class automatically generated * aapt tool resource data found.  * should not modified hand. */  package com.example.applicationprogrammingassignment;  public final class r { public static final class anim {     public static final int slide_in_left=0x7f040000;     public static final int slide_out_left=0x7f040001; } public static final class attr { } public static final class dimen {     /**  default screen margins, per android design guidelines.        customize dimensions defined in res/values/dimens.xml (such      screen margins) sw720dp devices (e.g. 10" tablets) in landscape here.       */     public static final int activity_horizontal_margin=0x7f050000;     public static final int activity_vertical_margin=0x7f050001; } public static final class drawable {     public static final int ic_launcher=0x7f020000; } public static final class id {     public static final int action_settings=0x7f090003;     public static final int btnhelp=0x7f090002;     public static final int btnplay=0x7f090000;     public static final int btnscore=0x7f090001; } public static final class layout {     public static final int activity_main=0x7f030000; } public static final class menu {     public static final int main=0x7f080000; } public static final class string {     public static final int action_settings=0x7f060001;     public static final int app_name=0x7f060000;     public static final int hello_world=0x7f060002; } public static final class style {     /**      base application theme, dependent on api level. theme replaced     appbasetheme res/values-vxx/styles.xml on newer devices.           theme customizations available in newer api levels can go in         res/values-vxx/styles.xml, while customizations related         backward-compatibility can go here.       base application theme api 11+. theme replaces     appbasetheme res/values/styles.xml on api 11+ devices.      api 11 theme customizations can go here.       base application theme api 14+. theme replaces     appbasetheme both res/values/styles.xml ,     res/values-v11/styles.xml on api 14+ devices.      api 14 theme customizations can go here.       */     public static final int appbasetheme=0x7f070000;     /**  application theme.      customizations not specific particular api-level can go here.       */     public static final int apptheme=0x7f070001; } }

r.java compiled automatically each time modify resources in res directory, not updated if there bug in 1 of xml files.

check xml files errors (lint should mark errors automatically). also, check 9 patches have make sure valid. can temporarily remove .9 name see if problem 9 patch format. have had cases of border pixels in 9 patch not pure black or pure white, , caused r.java not updated.


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