After install the vcs11, some error came out like:
It is wired, since I have successfully installed on another laptop. So I googled and found the following post.
http://maxron.pixnet.net/blog/post/28314703-chapter-20-davinci-dm6446-sdk-make-error
由於我的作業系統是ubuntu 10.04 LTS，而ubuntu 為了加快開機速度，預設的/bin/sh是採用體程小，速度較快一點的/bin/dash。
因此，開發人員有時會在run script 時，會出現錯誤，因此需要修改/bin/sh 的link，將它link 到/bin/bash
修改方式：
sudo rm -f /bin/sh ( 砍掉原先的 /bin/sh )
sudo ln -s /bin/bash /bin/sh ( 重新 link 到bash )
It is exactly the error depicted in the post. And you can see during the development, the file size matters with regards to everything.
Also, in some old post, the naming convention during the web app dev also matters too. Some people may take the irrational naming convention like xx1, xx2 as scrambling the original idea. Either case makes sense.