升级完Magento,就应该重新生成吧,但是却出现了Product Flat Data Index process is working now. Please try run this process later.这个错误,时而还500一下,可把人弄糊涂了,不过还好啦,很好解决: Fix “Product Flat Data Index process is working now. Please try run this process later.” To fix this annoying error I …