Waf: The wscript in '/home/ayoub/workspace/ns-allinone-3.19/ns-3.19' is unreadable
Traceback (most recent call last):
File "/home/ayoub/workspace/ns-allinone-3.19/ns-3.19/.waf-1.7.13-5a064c2686fe54de4e11018d22148cfc/waflib/Scripting.py", line 87, in waf_entry_point
set_main_module(Context.run_dir+os.sep+Context.WSCRIPT_FILE)
File "/home/ayoub/workspace/ns-allinone-3.19/ns-3.19/.waf-1.7.13-5a064c2686fe54de4e11018d22148cfc/waflib/Scripting.py", line 112, in set_main_module
Context.g_module=Context.load_module(file_path)
File "/home/ayoub/workspace/ns-allinone-3.19/ns-3.19/.waf-1.7.13-5a064c2686fe54de4e11018d22148cfc/waflib/Context.py", line 281, in load_module
exec(compile(code,path,'exec'),module.__dict__)
File "/home/ayoub/workspace/ns-allinone-3.19/ns-3.19/wscript", line 38, in <module>
import cflags # override the build profiles from waf
ImportError: No module named cflags