Expanding Xcode while installing Xcode 8 beta 2 on El Capitan

Question

I'm trying to install Xcode_8_beta_2.xip file downloaded from Apple official site. It shows Expanding Xcode...verifiying digital signature shown below :

Thereafter it shows 'The operation couldn't be completed. cipo read error: Undefined error:0' 'The operation couldn't be completed. cipo read error: Undefined error:0' shown below :

I'm installing on OS X El Capitan 10.11.4. There is already an Xcode 7.3 successfully installed on same system.

I've referred this link but none worked.

Answer 1

Per the release notes for Xcode 8 beta , the .xip file can only be extracted on OS X 10.11.5 or newer:

Expanding Xcode beta's .xip requires macOS version 10.11.5 or later. Attempting to expand the archive on earlier versions of macOS will result in an error. (26756225)