how to use isign to resign ipa on centos7

[simpleway2016]

I try to use isign to resign my ipa file.But i got this message:

File "/usr/bin/isign", line 4, in
import('pkg_resources').run_script('isign==1.6.15.1560424713.dev61+root', 'isign')
File "/usr/lib/python2.7/site-packages/pkg_resources/init.py", line 666, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "/usr/lib/python2.7/site-packages/pkg_resources/init.py", line 1453, in run_script
exec(code, namespace, namespace)
File "/usr/lib/python2.7/site-packages/isign-1.6.15.1560424713.dev61+root-py2.7.egg/EGG-INFO/scripts/isign", line 199, in
isign.resign(app_path, **kwargs)
File "/usr/lib/python2.7/site-packages/isign-1.6.15.1560424713.dev61+root-py2.7.egg/isign/isign.py", line 82, in resign
raise NotSignable(e)
isign.isign.NotSignable: helpers not present

[ncc0706]

yum install zip

[yh414209726]

我的也是这样 楼主解决了吗 安装了zip还是不行