如何在10.10.3 OSX上安装rubyracer gem

Question

当我运行bundle install时，我无法在我的OSX上安装此gem。这是日志：

public class ViewPagerAdapter extends FragmentPagerAdapter {
int NumbOfTabs = 4; // Store the number of tabs, this will also be passed when the ViewPagerAdapter is created
String[]tabs;
CharSequence Titles[]={"P","M","C","S","I"};
int icons[]={R.drawable.profile,R.drawable.match,R.drawable.chat,R.drawable.ic_search,R.drawable.info};
Context context;


public ViewPagerAdapter(FragmentManager fm, Context mContext) {
    super(fm);
    this.context= mContext;
    tabs = context.getResources().getStringArray(R.array.tabs);

}


@Override
public Fragment getItem(int position) {

    switch (position){

        case 0:
            Profile Profile = new Profile();
            return Profile;
        case 1:
            MatchPage MatchPage = new MatchPage();
            return MatchPage;
        case 2:
            Chat Chat = new Chat();
            return Chat;
        case 3:
            SearchPreference SearchPreference = new SearchPreference();
            return SearchPreference;
        case 4:
            Info Info = new Info();
            return Info;
    }
    return null;
}

@Override
public CharSequence getPageTitle(int position) {
    Drawable drawable=context.getResources().getDrawable(icons[position]);
    drawable.setBounds(0, 0,100,100);
    ImageSpan imageSpan = new ImageSpan(drawable);
    SpannableString spannableString =new SpannableString(" ");
    spannableString.setSpan(imageSpan,0,spannableString.length(),spannableString.SPAN_EXCLUSIVE_EXCLUSIVE);
    return spannableString;

    //return Titles[position];

}


@Override
public int getCount() {
    return NumbOfTabs;
}

我安装了很多次但没有成功。这里有人有这个问题吗？