Swift snapshots for Ubuntu 18.04

mishal_shah · August 1, 2018, 6:18pm

Swift snapshots for the master are available today, and Swift 4.2 snapshots will be available soon.

Ubuntu 18.04 Trunk Development (master) snapshots available at Swift.org - Download Swift

tigerous215 · August 4, 2018, 5:27pm

I installed swift for ubuntu 18.04 development release, going through this tutorial. When I enter swift command, REPL starts. I can define an integer using "let" command too. But when I want to define a new string, face this error:
"error: Couldn't lookup symbols:
Swift.String.init(_builtinStringLiteral: Builtin.RawPointer, utf8CodeUnitCount: Builtin.Word, isASCII: Builtin.Int1) -> Swift.String؛

I'm new to swift and can't understand what does that error exactly mean. Can anyone help me?

thanks!

taylorswift · August 5, 2018, 2:20am

did you import Foundation first? i used to have this problem but it went away when i built the compiler from source

lf-araujo · August 5, 2018, 7:15pm

This seems to be related to your installation, in my case this works as expected. That tutorial is using a very old swift version, are you sure you got the latest?

tigerous215 · August 5, 2018, 7:25pm

No. And actually have no idea about how to do that.

tigerous215 · August 5, 2018, 7:28pm

I installed the last release(for ubuntu 16) and the last snapshot(for ubuntu 18). None of them is working. Did you use the same installation method?

lf-araujo · August 5, 2018, 7:37pm

I did a few years ago and I also remember having all kinds of strange issues. Last time I installed it in Ubuntu I hard copied the files into /bin and /lib following the folder structure inside the zip, which I don't recommend you to do. Ubuntu failed on me again in January, so I moved on. But if I were you I would first test the flatpak repo first, last time I checked it did not work... this was in January as well. Search in this forum.

tigerous215 · August 5, 2018, 7:43pm

Aha. Thanks!

dcci · August 7, 2018, 9:49pm

This should work out-the-box. In fact, it was a bug in the REPL.
[REPL] Set the correct rpath when installing. by dcci · Pull Request #809 · apple/swift-lldb · GitHub should fix the problem, and the next nightly should have a working REPL.

Michael_Gottesman · August 8, 2018, 1:45am

For those listening in, @dcci is going to add a test to our integration test suite so that this is prevented from ever happening again.

dcci · August 8, 2018, 11:11pm

Done [REPL] Test RPATH is set correctly on linux. by dcci · Pull Request #31 · apple/swift-integration-tests · GitHub

mishal_shah · August 23, 2018, 7:48am

Swift 4.2 development snapshots now available for Ubuntu 18.04 on Swift.org - Download Swift