I get this error
/Users/macbook/Library/Developer/Xcode/DerivedData/xxxxx-egjyfcyhdfcgftavbtoudbcgthja/Build/Products/Debug-iphoneos/xxxx.app: unknown error -1=ffffffffffffffff
command /usr/bin/codesign failed with exit code 1
with xcode 9.1 / ios11.1 when creating the application, earlier I was able to run my application smoothly. Any idea what might be the problem. I have already tried the following steps:
Deletion of all Derived Data.
renew all profiles and training certificates.
But still no luck.
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