I tried to use command line to add Three20 with JSON :
python three20/src/scripts/ttmodule.py -p JsonTest/JsonTest.xcodeproj Three20 extThree20JSON:extThree20JSON+SBJSON
this command line successfully executed without any error message. I can find "extThree20JSON+SBJSON" in Direct dependencies and its link in linked libraries.
When I build my project with JSON import: #import "extThree20JSON/SBJSON.h"
xcode reported: error: extThree20JSON/SBJSON.h: No such file or directory
help please:(