我成功在网络主机中安装了 Drupal 7。安装模块后，我收到一个错误错误，并且状态报告给了我这个错误消息：
File system Not writable
The directory /Applications/MAMP/tmp/php does not exist.
You may need to set the correct directory at the file system settings page or
change the current directory's permissions so that it is writable.
我检查了权限(sites/default/files)，它有755 个权限，我将其更改为777，但什么也没发生，所以我将其退回。
我有以下设置(Home » Administration » Configuration » Media):
Public file system path
sites/default/files
Temporary directory
/Applications/MAMP/tmp/php
这是我得到的错误：
Warning: file_put_contents(temporary://fileDyFbDg) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1898 of /home/imamus/public_html/includes/file.inc).
The file could not be created.
Warning: file_put_contents(temporary://fileeTFMpl) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1898 of /home/imamus/public_html/includes/file.inc).
The file could not be created.
Warning: file_put_contents(temporary://fileuB8Tdu) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1898 of /home/imamus/public_html/includes/file.inc).
The file could not be created.
Warning: file_put_contents(temporary://filea1KYXG) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1898 of /home/imamus/public_html/includes/file.inc).
The file could not be created.
请指教。