您可能正在上传很大的文件,请参考文档来寻找解决方法

1.很明显，是文件太大，无法导入。即上传文件大小有限制。所以要去解除此限制。

2.其实这个很简单的只要更改php.ini里三个配置即可

 Maximum allowed size for uploaded files. 
 http://php.net/upload-max-filesize 
upload_max_filesize = 2M 
upload_max_filesize = 300M

 Maximum amount of memory a script may consume (128MB) 
 http://php.net/memory-limit 
memory_limit = 128M 
memory_limit = 300M

 Maximum size of POST data that PHP will accept. 
 http://php.net/post-max-size 
post_max_size = 8M 
post_max_size = 300M