Questions tagged [scala]
Scala is a general purpose programming language principally targeting the Java Virtual Machine. Designed to express common programming patterns in a concise, elegant, and type-safe way, it fuses both imperative and functional programming styles. Questions about programming and software development using Scala are off topic and should be asked on stackoverflow.com.
20 questions
1
vote
0
answers
161
views
SSH connection dropping immediately after authentication in Ammonite sshd
I realize this question (or similar ones) have been asked elsewhere, but the solutions haven't worked for me. I'm trying to use ammonite in a scala/java project locally and start the SSH server with
...
0
votes
1
answer
124
views
mapping two case classes in scala on Lagom
I am a beginner with scala/Lagom, can someone help me with the following issue :
I am trying to creat an Api for fields of products, in order to do that : I need to map case classes extending to a ...
0
votes
1
answer
6k
views
Spark - Failed to find data source: avro
When I run spark submit I have the following error:
Exception in thread "main" org.apache.spark.sql.AnalysisException:
Failed to find data source: avro. Avro is built-in but external data
...
- 1
1
vote
0
answers
597
views
IIssue while loading plugin sbt-assembly in SBT Version 1.2.8
I'm having trouble to install assembly plugin in my sbt 1.2.8 tool. I have added below configuration in my sbt setting file.
site.sbt:
addSbtPlugin("com.typesafe.sbt" % "sbt-site" % "1.3.3")
...
- 19
0
votes
0
answers
720
views
Powershell doesn't seem to get proper escaped path from $env:path
Every time I try to execute from Powershell a command that is located in my Program Files folder (e.g. 'scala') I get this output:
PS C:\> scala
the term (x86) was not recognized as a cmdlet, ...
- 1
0
votes
1
answer
506
views
How do I run scala sbt behind a zsacaler proxy (zscloud)
My company recently used new security software from zscaler to secure internet traffic.
From my basic understanding, what it does is:
It takes all encrypted SSL internet connections and looks into it ...
- 101
39
votes
1
answer
123k
views
remove package installed by brew
Package name : sbt
Path : /usr/local/cellar/sbt
what I have try :
sudo rmdir sbt -i on my terminal but get
"rmdir: sbt: Directory not empty"
- 393
-1
votes
1
answer
64
views
Need guidance starting node js / scala app
I have installed yum/apt-get installed scala, "node install" installed gulp, but cannot find how to run it for dev mode. I have started a number of node applications in the past.
I am trying to ...
- 103
1
vote
0
answers
815
views
Spark standalone running job error
Have been stuck on this error for a few days, desperately need help.
So with standalone deploying mode, I am trying to run sample jobs, yet no matter how simple the job is (even starting spark-shell ...
- 11
3
votes
0
answers
734
views
Idea IntelliJ : Compile & Run Scala REPL in remote machine
I am developing a Scala application on my remote machine ( It doesnot support GUI ) I need to use IntelliJ IDEA to write my code . Can you suggest me the best way to write my code in local machine ( ...
- 131
21
votes
1
answer
6k
views
Why does the ">" command in a Windows console not redirect all messages to a file?
I am trying to build a Scala project with sbt, so I run a command:
sbt clean test > log.log
Which means that any messages that the sbt tool writes to the Windows console should be written to the "...
- 970
0
votes
0
answers
85
views
error running scala installer on windows
I am trying to use the scala 2.11.2 msi installer (downloaded from the scala site) on windows 7 professional (64 bit). However, I get the following error when launching the installer:
This ...
- 179
1
vote
1
answer
740
views
IntelliJ Idea debugging expression evaluation
I'm using IntelliJ idea Community edition (with Scala) and I'm trying to evaluate an expression. I hit Alt-F8 to open it in debug mode and then switch to 'Code Fragment Mode'. However, I'm allowed to ...
- 1,961
3
votes
1
answer
3k
views
How to add CLASSPATH parameters permanently when using sudo?
On Ubuntu 12.04.2 LTS 64bits, when using sudo or sudo -i or sudo su or even su in a session, in order to use both Java AND Scala I need to enter the following commands:
sudo -i
CLASSPATH=$CLASSPATH:/...
- 145
0
votes
2
answers
108
views
Log total time a linux command (compiler) runs during a day
I'm interested in how long my machine spends compiling scala in an average workday. Is there some way to log the total runtime of the scalac command every time it is run, even if it is run by some ...
- 285
1
vote
1
answer
186
views
Scala REPL Crash
I've tried Scala on two computers. It works fine on a Windows Professional 64-Bit OS, but the REPL and scalac crash nastily on Windows Professional 32-Bit when running directly from the command line.
...
- 157
0
votes
1
answer
1k
views
TextMate Scala bundle
Scala and Textmate have been around for a while, but I wonder why there's no TM Scala Bundle here yet.
Is there a usable one without a hard/uncommon installation process?
The one which is as easy as ...
- 363
0
votes
2
answers
2k
views
What are software and hardware requirements for Scala language?
I was wondering, what software and hardware requirements are there to make Scala work correctly?
- 1,837
3
votes
1
answer
684
views
Scala compiler _incredibly_ slow on Mac OS X 10.6
I recently tried to install scala and the Scala IDE plugin for Eclipse. Everything's working fine, except for that it takes over 5 seconds to compile a simple hello world program. At first I thought ...
- 824
13
votes
3
answers
2k
views
A rapid way to type funny characters from Scalaz?
Is there any easy and fast way to type the funny characters (like ⊛, ≟, ∘, ∨ etc) from Scalaz? (I am using Ubuntu 9.04)
Green Hyena