sbt fails to download components

Question

So I installed sbt on Ubuntu using the instructions at ., but when I execute sbt at the terminal, I get errors where downloads fail because "no trusted certificate was found". I'm not doing much, so I'm not sure what I could be doing wrong.

I have successfully downloaded one of these components (https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/main/0.13.13/jars/main.jar) using Google Chrome, and didn't notice it report any HTTPS cert errors.

This is a fresh install in Parallels of Ubuntu 16.04.

The full output is as follows:

parallels@ubuntu:~$ sbt
Getting org.scala-sbt sbt 0.13.13 ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/main/0.13.13/jars/main.jar ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/compiler-interface/0.13.13/jars/compiler-interface.jar ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/actions/0.13.13/jars/actions.jar ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/main-settings/0.13.13/jars/main-settings.jar ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/io/0.13.13/jars/io.jar ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/ivy/0.13.13/jars/ivy.jar ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/command/0.13.13/jars/command.jar ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/completion/0.13.13/jars/completion.jar ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/api/0.13.13/jars/api.jar ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/collections/0.13.13/jars/collections.jar ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/incremental-compiler/0.13.13/jars/incremental-compiler.jar ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/compile/0.13.13/jars/compile.jar ...

:: problems summary ::
:::: WARNINGS
        [FAILED     ] org.scala-sbt#main;0.13.13!main.jar: sun.security.validator.ValidatorException: No trusted certificate found (16019ms)

        [FAILED     ] org.scala-sbt#main;0.13.13!main.jar:  (0ms)

    ==== local: tried

      /home/parallels/.ivy2/local/org.scala-sbt/main/0.13.13/jars/main.jar

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/main/0.13.13/main-0.13.13.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/main/0.13.13/jars/main.jar

    ==== sbt-ivy-snapshots: tried

      https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/main/0.13.13/jars/main.jar

        [FAILED     ] org.scala-sbt#compiler-interface;0.13.13!compiler-interface.jar: sun.security.validator.ValidatorException: No trusted certificate found (754ms)

        [FAILED     ] org.scala-sbt#compiler-interface;0.13.13!compiler-interface.jar:  (0ms)

    ==== local: tried

      /home/parallels/.ivy2/local/org.scala-sbt/compiler-interface/0.13.13/jars/compiler-interface.jar

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/compiler-interface/0.13.13/compiler-interface-0.13.13.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/compiler-interface/0.13.13/jars/compiler-interface.jar

    ==== sbt-ivy-snapshots: tried

      https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/compiler-interface/0.13.13/jars/compiler-interface.jar

        [FAILED     ] org.scala-sbt#actions;0.13.13!actions.jar: sun.security.validator.ValidatorException: No trusted certificate found (763ms)

        [FAILED     ] org.scala-sbt#actions;0.13.13!actions.jar:  (0ms)

    ==== local: tried

      /home/parallels/.ivy2/local/org.scala-sbt/actions/0.13.13/jars/actions.jar

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/actions/0.13.13/actions-0.13.13.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/actions/0.13.13/jars/actions.jar

    ==== sbt-ivy-snapshots: tried

      https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/actions/0.13.13/jars/actions.jar

        [FAILED     ] org.scala-sbt#main-settings;0.13.13!main-settings.jar: sun.security.validator.ValidatorException: No trusted certificate found (789ms)

        [FAILED     ] org.scala-sbt#main-settings;0.13.13!main-settings.jar:  (0ms)

    ==== local: tried

      /home/parallels/.ivy2/local/org.scala-sbt/main-settings/0.13.13/jars/main-settings.jar

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/main-settings/0.13.13/main-settings-0.13.13.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/main-settings/0.13.13/jars/main-settings.jar

    ==== sbt-ivy-snapshots: tried

      https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/main-settings/0.13.13/jars/main-settings.jar

        [FAILED     ] org.scala-sbt#io;0.13.13!io.jar: sun.security.validator.ValidatorException: No trusted certificate found (766ms)

        [FAILED     ] org.scala-sbt#io;0.13.13!io.jar:  (0ms)

    ==== local: tried

      /home/parallels/.ivy2/local/org.scala-sbt/io/0.13.13/jars/io.jar

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/io/0.13.13/io-0.13.13.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/io/0.13.13/jars/io.jar

    ==== sbt-ivy-snapshots: tried

      https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/io/0.13.13/jars/io.jar

        [FAILED     ] org.scala-sbt#ivy;0.13.13!ivy.jar: sun.security.validator.ValidatorException: No trusted certificate found (770ms)

        [FAILED     ] org.scala-sbt#ivy;0.13.13!ivy.jar:  (0ms)

    ==== local: tried

      /home/parallels/.ivy2/local/org.scala-sbt/ivy/0.13.13/jars/ivy.jar

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/ivy/0.13.13/ivy-0.13.13.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/ivy/0.13.13/jars/ivy.jar

    ==== sbt-ivy-snapshots: tried

      https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/ivy/0.13.13/jars/ivy.jar

        [FAILED     ] org.scala-sbt#command;0.13.13!command.jar: sun.security.validator.ValidatorException: No trusted certificate found (712ms)

        [FAILED     ] org.scala-sbt#command;0.13.13!command.jar:  (0ms)

    ==== local: tried

      /home/parallels/.ivy2/local/org.scala-sbt/command/0.13.13/jars/command.jar

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/command/0.13.13/command-0.13.13.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/command/0.13.13/jars/command.jar

    ==== sbt-ivy-snapshots: tried

      https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/command/0.13.13/jars/command.jar

        [FAILED     ] org.scala-sbt#completion;0.13.13!completion.jar: sun.security.validator.ValidatorException: No trusted certificate found (705ms)

        [FAILED     ] org.scala-sbt#completion;0.13.13!completion.jar:  (0ms)

    ==== local: tried

      /home/parallels/.ivy2/local/org.scala-sbt/completion/0.13.13/jars/completion.jar

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/completion/0.13.13/completion-0.13.13.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/completion/0.13.13/jars/completion.jar

    ==== sbt-ivy-snapshots: tried

      https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/completion/0.13.13/jars/completion.jar

        [FAILED     ] org.scala-sbt#api;0.13.13!api.jar: sun.security.validator.ValidatorException: No trusted certificate found (769ms)

        [FAILED     ] org.scala-sbt#api;0.13.13!api.jar:  (0ms)

    ==== local: tried

      /home/parallels/.ivy2/local/org.scala-sbt/api/0.13.13/jars/api.jar

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/api/0.13.13/api-0.13.13.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/api/0.13.13/jars/api.jar

    ==== sbt-ivy-snapshots: tried

      https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/api/0.13.13/jars/api.jar

        [FAILED     ] org.scala-sbt#collections;0.13.13!collections.jar: sun.security.validator.ValidatorException: No trusted certificate found (703ms)

        [FAILED     ] org.scala-sbt#collections;0.13.13!collections.jar:  (0ms)

    ==== local: tried

      /home/parallels/.ivy2/local/org.scala-sbt/collections/0.13.13/jars/collections.jar

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/collections/0.13.13/collections-0.13.13.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/collections/0.13.13/jars/collections.jar

    ==== sbt-ivy-snapshots: tried

      https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/collections/0.13.13/jars/collections.jar

        [FAILED     ] org.scala-sbt#incremental-compiler;0.13.13!incremental-compiler.jar: sun.security.validator.ValidatorException: No trusted certificate found (721ms)

        [FAILED     ] org.scala-sbt#incremental-compiler;0.13.13!incremental-compiler.jar:  (0ms)

    ==== local: tried

      /home/parallels/.ivy2/local/org.scala-sbt/incremental-compiler/0.13.13/jars/incremental-compiler.jar

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/incremental-compiler/0.13.13/incremental-compiler-0.13.13.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/incremental-compiler/0.13.13/jars/incremental-compiler.jar

    ==== sbt-ivy-snapshots: tried

      https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/incremental-compiler/0.13.13/jars/incremental-compiler.jar

        [FAILED     ] org.scala-sbt#compile;0.13.13!compile.jar: sun.security.validator.ValidatorException: No trusted certificate found (817ms)

        [FAILED     ] org.scala-sbt#compile;0.13.13!compile.jar:  (0ms)

    ==== local: tried

      /home/parallels/.ivy2/local/org.scala-sbt/compile/0.13.13/jars/compile.jar

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/compile/0.13.13/compile-0.13.13.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/compile/0.13.13/jars/compile.jar

    ==== sbt-ivy-snapshots: tried

      https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/compile/0.13.13/jars/compile.jar

        ::::::::::::::::::::::::::::::::::::::::::::::

        ::              FAILED DOWNLOADS            ::

        :: ^ see resolution messages for details  ^ ::

        ::::::::::::::::::::::::::::::::::::::::::::::

        :: org.scala-sbt#main;0.13.13!main.jar

        :: org.scala-sbt#actions;0.13.13!actions.jar

        :: org.scala-sbt#io;0.13.13!io.jar

        :: org.scala-sbt#completion;0.13.13!completion.jar

        :: org.scala-sbt#collections;0.13.13!collections.jar

        :: org.scala-sbt#api;0.13.13!api.jar

        :: org.scala-sbt#incremental-compiler;0.13.13!incremental-compiler.jar

        :: org.scala-sbt#compile;0.13.13!compile.jar

        :: org.scala-sbt#ivy;0.13.13!ivy.jar

        :: org.scala-sbt#main-settings;0.13.13!main-settings.jar

        :: org.scala-sbt#command;0.13.13!command.jar

        :: org.scala-sbt#compiler-interface;0.13.13!compiler-interface.jar

        ::::::::::::::::::::::::::::::::::::::::::::::



:: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS
download failed: org.scala-sbt#main;0.13.13!main.jar
download failed: org.scala-sbt#actions;0.13.13!actions.jar
download failed: org.scala-sbt#io;0.13.13!io.jar
download failed: org.scala-sbt#completion;0.13.13!completion.jar
download failed: org.scala-sbt#collections;0.13.13!collections.jar
download failed: org.scala-sbt#api;0.13.13!api.jar
download failed: org.scala-sbt#incremental-compiler;0.13.13!incremental-compiler.jar
download failed: org.scala-sbt#compile;0.13.13!compile.jar
download failed: org.scala-sbt#ivy;0.13.13!ivy.jar
download failed: org.scala-sbt#main-settings;0.13.13!main-settings.jar
download failed: org.scala-sbt#command;0.13.13!command.jar
download failed: org.scala-sbt#compiler-interface;0.13.13!compiler-interface.jar
Error during sbt execution: Error retrieving required libraries
  (see /home/parallels/.sbt/boot/update.log for complete log)
Error: Could not retrieve sbt 0.13.13

Answer 1

After running into this issue installing sbt on Ubuntu myself I found the solution. I believe we had the same error so this should fix it. I have provided steps from beginning to end to download and install sbt on Ubuntu. Start at step 4 if you just want to fix the error.

Type the following commands into the terminal. Note that you can find these commands if you go to www.scala-sbt.org/download.html.

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

2) Now type sbt in the terminal, and it should install some .jar files and give you a REPL ('>' symbol).

2.1) If this worked, type console after the '>' sign and press enter

2.2) Now the prompt will read 'scala>'. Type 3+3, then press enter just to test it out.

If you had errors after typing sbt, then continue on. If you had no errors, congratulations! You installed Scala and sbt!

3) If typing sbt in step 2 produced errors similar to the following picture then go to step 4.

4) You need to change the default JDK version to 8, as stated on the Stack Overflow answer here Exception on download: sun.security.validator.ValidatorException: No trusted certificate found

4.1) To do this type sudo update-alternatives --config java

4.2) Select the option with java-8 in the path.

NOTE: If you don't have an option with java-8 in the path, you should be able to download JDK8 and then go back to step 4.1 to set it as your default JDK.

5) Then run sbt again and it should work!