scala-ide | Scala IDE for Eclipse | Plugin library

I am new to Scala, and have never used a build tool before, and I am having some trouble getting the HelloWorld example on the scalafx quickstart page to compile.

I previously tried to use the scala IDE 4.7.0 Release to run the code, by creating a new scala project, and adding the scalafx.jar version 8.0.102-R11 as an external jar in the build path libraries' option. However, when I right clicked on the project and selected "Run as", there was no option to run it as a Scala Application, and trying to use the object name in a new run configuration didn't seem to work. I decided to try using the command line with SBT instead.

I am running Windows 10, and I have Java 8 installed, as well as JDK 12.0.2. I have created a project in my downloads folder, inside a folder called scalahelloworld, and ran the following command:

sbt new scala/hello-world.g8

This created the hello world project normally, and it compiles and runs without issues. However, when I tried following the instructions on the quick start guide for scalafx, adding the line

libraryDependencies += "org.scalafx" %% "scalafx" % "8.0.144-R12"

to build.sbt, and well as using their example code in my main object, it gives me some compiling errors:

how can I integrate Kafka connect with Kafka producer in java so that I can read a CSV file in real time? I am having a hard time finding any source related to this.

Right now I am using scala-ide to run a simple Kafka producer class, but have no idea on how to use it with Kafka connect.

First of all: every answer I found on this error was about a Java file outside of a full project, this does not apply here.

I am trying to be back to an old java play project of mine, in play 2.6. I "Eclipsified" it with the sbt eclipse command. It was written in Java 8.

This is most likely a VSCode configuration problem since sbt compile runs smoothly on this project, the java play application runs and everything works fine.

My system is using OpenJDK 1.8 Globally. My OS is Ubuntu 18.04.

My problem:

At some point in my code I have these lines :

I am on Eclipse 2018.12 (actually same issue occurs from other version like Mars2 or Scala-IDE 4.7), I am struggling to get Git/EGit pass authentication while cloning remote repository, which is deployed on my company's server.

The same issue never occur while I am using Git command like or Git GUI or IntelliJ, but only by Eclipse (regardless of Eclipse version or any type of Git plugin)

I think the difference here is from Git bash or Git GUI or IntelliJ, the authentication is implicitly by verifying my Windows credential from local OS credential store with remote server. So Git bash/GUI and IntelliJ never pop up the login screen.

However, the default setup page from Eclipse asks for username/password every time. And after I enter the correct information, the same pop up message just show up again and again, like a sign that the authentication never pass.

Please see screenshot below.

Is there anyway to let Eclipse to follow the same way of authentication like Git

I am trying to access a file in alluxio in a scala code in the IDE and i am getting this error Exception in thread "main" java.io.IOException: No FileSystem for scheme: alluxio My code is as follows,

I just set up a Scala project in Eclipse (Oxygen 4.7.3a, on Ubuntu 18.04) with the Scala-IDE plugin (4.7.0.v-2_12-201709291352-71a28d0) with a simple HelloWorld object. If I set "Properties -> Scala Compiler" to 2.12 everything works as expected: the project compiles and runs. But if I choose any other version (for instance, "Latest 2.10 bundle (dynamic)" I get prompted to do a full rebuild (as expected) but when I go to "Project -> Build" nothing happens. If I have errors in my code, the editor underlines them, but they won't show in "Problems". If I try to run it I get a class not found error.

I get the feeling that it is not actually compiling. Any ideas on what I need to configure differently?

I am new to scala. And also first time trying to create maven scala project in eclipse (oxygen 3).

First of all, I have eclipse scala plugin installed.

Then, I followed instructions given in this post. As given in the post, I installed eclipse-maven plugin from this repo. Then created new maven project of scala-archetype-simple archetype. This archetype wasnt present there. So I added it by clicking on "Add archetype" button and following wizard.

However after following all steps, I ended up in following errors:

1. Description Resource Path Location Type More than one scala library found in the build path (E:/Program Files/eclipse oxygen 3/eclipse/plugins/org.scala-lang.scala-library_2.12.3.v20170725-052526-VFINAL-6ac6da8.jar, C:/Users/crrma/.m2/repository/org/scala-lang/scala-library/2.10.0/scala-library-2.10.0.jar).At least one has an incompatible version. Please update the project build path so it contains only one compatible scala library. scala Unknown Scala Classpath Problem
2. Description Resource Path Location Type scalatest_2.10-2.0.M6-SNAP8.jar of scala build path is cross-compiled with an incompatible version of Scala (2.10.0). In case this report is mistaken, this check can be disabled in the compiler preference page. scala Unknown Scala Version Problem
3. Description Resource Path Location Type scalaz-concurrent_2.10-7.0.0.jar of scala build path is cross-compiled with an incompatible version of Scala (2.10.0). In case this report is mistaken, this check can be disabled in the compiler preference page. scala Unknown Scala Version Problem
4. Description Resource Path Location Type scalaz-core_2.10-7.0.0.jar of scala build path is cross-compiled with an incompatible version of Scala (2.10.0). In case this report is mistaken, this check can be disabled in the compiler preference page. scala Unknown Scala Version Problem
5. Description Resource Path Location Type scalaz-effect_2.10-7.0.0.jar of scala build path is cross-compiled with an incompatible version of Scala (2.10.0). In case this report is mistaken, this check can be disabled in the compiler preference page. scala Unknown Scala Version Problem
6. Description Resource Path Location Type specs2_2.10-1.13.jar of scala build path is cross-compiled with an incompatible version of Scala (2.10.0). In case this report is mistaken, this check can be disabled in the compiler preference page. scala Unknown Scala Version Problem

Image of eclipse problems (stackoverflow is not allowing me to embed images due to low reputation points)

Image of eclipse Build path window

Whats wrong here?

I am writing a code to perform kernel K-Means (aka https://en.wikipedia.org/wiki/K-means_clustering, but with a trick). I need to generate data, and as a first simple generator I tried to implement a Gaussian Mixture Model. Here are my code:

The question is quite simple. When I declare a Scala field directly in a constructor, like this: