Problemas no inflate(R.layout.item,null)

o programa nao reconhece o item.xml ta bugando esse item, alguem saberia resolver? Segue o codigo:

@Override
    public View getView(int posicao, View convertView, ViewGroup parent) {
        View view = activity.getLayoutInflater().inflate(R.layout.item, null);

        Aluno aluno = alunos.get(posicao);

        if (posicao % 2 == 0) {
            view.setBackgroundColor(activity.getResources().
                getColor(R.color.linha_par));
        } 

        TextView nome = (TextView) view.findViewById(R.id.nome);
        nome.setText(aluno.toString());

        Bitmap bm; 

        if (aluno.getFoto() != null) {
            bm = BitmapFactory.decodeFile(aluno.getFoto());
        } else {
            bm = BitmapFactory.decodeResource(activity.getResources(),
                R.drawable.noimage);
        }

        bm = Bitmap.createScaledBitmap(bm, 100, 100, true);

        ImageView foto = (ImageView) view.findViewById(R.id.foto);
        foto.setImageBitmap(bm);

        return view;
    }