how to set obfuscate-project file?

[lin493369]

My project is running in Xcode 7.2，I had tried to obfuscated the ExampleBankingApp，but it didn't work.
From the log，i find that obfuscate-project file is wrong setting.After that,I use ios-class-guard in my own
project,the obfuscate-project (use the curl )is different from the example one,so i doubt something is wrong with my obfuscate-project setting,can any one tell me how to set this?