[SR-8957] The latest swift (4.2) not response on ubuntu 18.04

[swift-ci]

Previous ID	SR-8957
Radar	https://bugs.swift.org/browse/SR-2744
Original Reporter	liudonghua123 (JIRA User)
Type	Bug

Attachment: Download

Additional Detail from JIRA

Votes	0
Component/s	Compiler, LLDB for Swift
Labels	Bug
Assignee	None
Priority	Medium

md5: f22bdc42fd76e2a5689e39cd155c5d1c

Issue Description:

I have installed the latest swift on my ubuntu 18.04 followed the instructions on https://swift.org/getting-started/#installing-swift

But When I tried to execute swift to enter the interactive mode, but it did not give me some message. It did not response when I enter some expression either.

The following was a snapshot from my terminal window.

[swift-ci]

Comment by liudonghua123 (JIRA)

I tried execute or compile a script, it worked.