小白dumpdecrypted 砸壳碰到问题

iPhone:~ root# cd /var/mobile/Containers/Data/Application/E86B547D-5153-45F4-ADC6-5B4D01CAF18C/Documents/
iPhone:/var/mobile/Containers/Data/Application/E86B547D-5153-45F4-ADC6-5B4D01CAF18C/Documents root# DYLD_INSERT_LIBRARIES=dumpdecrypted.dylib /var/containers/Bundle/Application/C6E35D18-5878-44E9-ADAC-B2881CFF4165/WeChat.app/WeChat
dyld: could not load inserted library ‘dumpdecrypted.dylib’ because no suitable image found. Did find:
dumpdecrypted.dylib: required code signature missing for ‘dumpdecrypted.dylib’
/private/var/mobile/Containers/Data/Application/E86B547D-5153-45F4-ADC6-5B4D01CAF18C/Documents/dumpdecrypted.dylib: required code signature missing for ‘/private/var/mobile/Containers/Data/Application/E86B547D-5153-45F4-ADC6-5B4D01CAF18C/Documents/dumpdecrypted.dylib’

iPhone 5c 版本10.3.3 xocde 7.2.1

dumpdecrypted.dylib需要重签名