ecshop安装模板不可写如何解决

ecshop安装模板不可写怎么解决？我的系统是macosx10.8.2ecshop2.7.3急求解决办法！！！谢谢了报错：themes/default/activity.dwt不可写themes/default/article.dwt不可写themes/default/article_cat.dwt不可写themes/default/article_pro.dwt不可写themes/default/auction.dwt不可写themes/default/auction_list.dwt不可写themes/default/brand.dwt不可写themes/default/brand_list.dwt不可写themes/default/catalog.dwt不可写themes/default/category.dwt不可写themes/default/compare.dwt不可写themes/default/exchange_goods.dwt不可写themes/default/exchange_list.dwt不可写themes/default/flow.dwt不可写themes/default/gallery.dwt不可写themes/default/goods.dwt不可写themes/default/group_buy_goods.dwt不可写themes/default/group_buy_list.dwt不可写themes/default/index.dwt不可写themes/default/message.dwt不可写themes/default/message_board.dwt不可写themes/default/myship.dwt不可写themes/default/package.dwt不可写themes/default/pick_out.dwt不可写themes/default/quotation.dwt不可写themes/default/receive.dwt不可写themes/default/respond.dwt不可写themes/default/search.dwt不可写themes/default/snatch.dwt不可写themes/default/tag_cloud.dwt不可写themes/default/topic.dwt不可写themes/default/user_clips.dwt不可写themes/default/user_passport.dwt不可写themes/default/user_transaction.dwt不可写themes/default/wholesale_list.dwt不可写themes/default/library/ad_position.lbi不可写themes/default/library/article_category_tree.lbi不可写themes/default/library/auction.lbi不可写themes/default/library/bought_goods.lbi不可写themes/default/library/bought_note_guide.lbi不可写themes/default/library/bought_notes.lbi不可写themes/default/library/brand_goods.lbi不可写themes/default/library/brands.lbi不可写themes/default/library/cart.lbi不可写themes/default/library/cat_articles.lbi不可写themes/default/library/cat_goods.lbi不可写themes/default/library/category_tree.lbi不可写themes/default/library/categorys.lbi不可写themes/default/library/comments.lbi不可写themes/default/library/comments_list.lbi不可写themes/default/library/consignee.lbi不可写themes/default/library/email_list.lbi不可写themes/default/library/exchange_hot.lbi不可写themes/default/library/exchange_list.lbi不可写themes/default/library/filter_attr.lbi不可写themes/default/library/goods_article.lbi不可写themes/default/library/goods_attrlinked.lbi不可写themes/default/library/goods_fittings.lbi不可写themes/default/library/goods_gallery.lbi不可写themes/default/library/goods_list.lbi不可写themes/default/library/goods_related.lbi不可写themes/default/library/goods_tags.lbi不可写themes/default/library/group_buy.lbi不可写themes/default/library/help.lbi不可写themes/default/library/history.lbi不可写themes/default/library/index_ad.lbi不可写themes/default/library/invoice_query.lbi不可写themes/default/library/member.lbi不可写themes/default/library/member_info.lbi不可写themes/default/library/message_list.lbi不可写themes/default/library/myship.lbi不可写themes/default/library/new_articles.lbi不可写themes/default/library/online.lbi不可写themes/default/library/order_query.lbi不可写themes/default/library/order_total.lbi不可写themes/default/library/page_footer.lbi不可写themes/default/library/page_header.lbi不可写themes/default/library/pages.lbi不可写themes/default/library/price_grade.lbi不可写themes/default/library/promotion_info.lbi不可写themes/default/library/recommend_best.lbi不可写梦想让我与众不同，奋斗让我改变命运！