Installing sbt in ubuntu: Failed to fetch https://dl.bintray.com/sbt/debian/Packages server certificate verification failed.

[cacti77]

steps

At https://www.scala-sbt.org/1.x/docs/Installing-sbt-on-Linux.html under 'Ubuntu and other Debian-based distributions' it says:

echo "deb https://dl.bintray.com/sbt/debian /" | sudo tee -a /etc/apt/sources.list.d/sbt.list
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2EE0EA64E40A89B84B2DF73499E82A75642AC823
sudo apt-get update
sudo apt-get install sbt

problem

3rd step fails. Output of first 3 steps:

$ echo "deb https://dl.bintray.com/sbt/debian /" | sudo tee -a /etc/apt/sources.list.d/sbt.list
deb https://dl.bintray.com/sbt/debian /
$ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2EE0EA64E40A89B84B2DF73499E82A75642AC823
Executing: /tmp/tmp.SwnY57RiJY/gpg.1.sh --keyserver
hkp://keyserver.ubuntu.com:80
--recv
2EE0EA64E40A89B84B2DF73499E82A75642AC823
gpg: requesting key 642AC823 from hkp server keyserver.ubuntu.com
gpg: key 642AC823: "sbt build tool <scalasbt@gmail.com>" not changed
gpg: Total number processed: 1
gpg:              unchanged: 1
$ sudo apt-get update
Hit:1 http://gb.archive.ubuntu.com/ubuntu xenial InRelease
Hit:2 http://gb.archive.ubuntu.com/ubuntu xenial-updates InRelease      
Ign:3 https://dl.bintray.com/sbt/debian  InRelease                      
Get:4 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB]
Ign:5 https://dl.bintray.com/sbt/debian  Release
Ign:6 https://dl.bintray.com/sbt/debian  Packages
Ign:7 https://dl.bintray.com/sbt/debian  Translation-en_GB
Ign:8 https://dl.bintray.com/sbt/debian  Translation-en
Ign:6 https://dl.bintray.com/sbt/debian  Packages
Ign:7 https://dl.bintray.com/sbt/debian  Translation-en_GB
Ign:8 https://dl.bintray.com/sbt/debian  Translation-en
Ign:6 https://dl.bintray.com/sbt/debian  Packages
Ign:7 https://dl.bintray.com/sbt/debian  Translation-en_GB
Ign:8 https://dl.bintray.com/sbt/debian  Translation-en
Ign:6 https://dl.bintray.com/sbt/debian  Packages
Ign:7 https://dl.bintray.com/sbt/debian  Translation-en_GB
Ign:8 https://dl.bintray.com/sbt/debian  Translation-en
Ign:6 https://dl.bintray.com/sbt/debian  Packages
Ign:7 https://dl.bintray.com/sbt/debian  Translation-en_GB
Ign:8 https://dl.bintray.com/sbt/debian  Translation-en
Err:6 https://dl.bintray.com/sbt/debian  Packages
  server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
Ign:7 https://dl.bintray.com/sbt/debian  Translation-en_GB
Ign:8 https://dl.bintray.com/sbt/debian  Translation-en
Fetched 102 kB in 4s (20.8 kB/s)
Reading package lists... Done
W: The repository 'https://dl.bintray.com/sbt/debian  Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch https://dl.bintray.com/sbt/debian/Packages  server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
E: Some index files failed to download. They have been ignored, or old ones used instead.
$

Ubuntu's Software Updater fails too: "Failed to download repository information, Check your internet connection."

expectation

No errors when updating apt.

notes

Ubuntu 16.04 LTS (running in an Oracle VirtualBox VM on Windows 7 behind a corporate proxy).

sbt version: 1.x

[eed3si9n]

https://dl.bintray.com/sbt/debian has Release. Could you test without your corporate proxy?

[cacti77]

All 4 steps work fine at home on a different ubuntu 16.04 computer. I'll try the work computer tomorrow if I can get it on a non-work network...

[cacti77]

Unfortunately this isn't easy to test on my work computer. It's hard to get onto a non-work network in the first place and I'd also have to disable all the relevant proxy settings (e.g., for apt, etc.). So I'm not sure if and when I'll be able to test this without the corporate proxy I'm afraid...

[serv-inc]

Could be related to #4248 .

[eed3si9n]

I am closing this for now since there's not much we can do to proceed.

[shijunjing]

I solve same problem by changing the "https" to "http" in the first step as below:
echo "deb http://dl.bintray.com/sbt/debian /" | sudo tee -a /etc/apt/sources.list.d/sbt.list

[yt1969143065]

echo "deb https://repo.scala-sbt.org/scalasbt/debian all main" | sudo tee /etc/apt/sources.list.d/sbt.list
echo "deb https://repo.scala-sbt.org/scalasbt/debian /" | sudo tee /etc/apt/sources.list.d/sbt_old.list
curl -sL "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x2EE0EA64E40A89B84B2DF73499E82A75642AC823" | sudo apt-key add
sudo apt-get update
sudo apt-get install sbt