sbt not found on ubuntu

Resolving "sbt not found" Error on Ubuntu

Introduction

sbt (Simple Build Tool) is a widely used build tool for Scala projects. When trying to use sbt on Ubuntu, you may encounter an error message indicating that sbt is not found. This can be caused by several factors, including an incorrect installation or missing dependencies.

Solution

1. Update Certificates:

   sudo update-ca-certificates -f
   sudo /var/lib/dpkg/info/ca-certificates-java.postinst configure
   

This command updates the system's certificate authority (CA) certificates and configures Java-related certificates.



2. Install Required Packages:

   echo "java installation ok"
   echo "starting sbt installation"
   apt-get install -y apt-transport-https
   

   This command installs the necessary packages, including apt-transport-https, for managing HTTPS-based repositories.

   
   
3. Add sbt Repository:

   echo "deb https://dl.bintray.com/sbt/debian /" | sudo tee -a /etc/apt/sources.list.d/sbt.list
   

   This command adds the sbt repository to your system's list of software sources.

   
   
4. Import sbt Key:

   apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2EE0EA64E40A89B84B2DF73499E82A75642AC823
   

   This command imports the sbt key, which is used to verify the authenticity of packages from the sbt repository.

   
   
5. Update and Install sbt:

   apt-get update
   apt-get install -y sbt
   

   Finally, update the package list and install sbt on your system.

   
   

Alternative Solution

If the above steps do not resolve the issue, you can try the following:

1. Add sbt Repository (Alternative):

   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
   

This command adds an alternative sbt repository to your system.



2. Import sbt Key (Alternative):

   curl -sL "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x2EE0EA64E40A89B84B2DF73499E82A75642AC823" | sudo apt-key add
   

   This command imports the alternative sbt key.

   
   
3. Update and Install sbt:

   sudo apt-get update
   sudo apt-get install sbt
   

   Finally, update the package list and install sbt.

   
   

Conclusion

Following the steps outlined in this guide should resolve the "sbt not found" error on Ubuntu. Remember to choose the solution that best suits your needs and preferences. Once sbt is successfully installed, you can leverage its powerful features to build and manage Scala projects efficiently.