sbt compile error

[Geebus]

I'm on Ubuntu 18.04, I cloned the git, installed the latest sbt, oracle java jdk 11, redis and playframework.

Trying to run 'sbt compile' in the smtp folder and I get:

Copying runtime jar.
Getting org.scala-sbt sbt 0.13.8 (this may take some time)...
:: retrieving :: org.scala-sbt#boot-app
confs: [default]
52 artifacts copied, 0 already retrieved (17674kB/100ms)
Getting Scala 2.10.4 (for sbt)...
:: retrieving :: org.scala-sbt#boot-scala
confs: [default]
5 artifacts copied, 0 already retrieved (24459kB/43ms)
[info] Loading project definition from /root/maildrop/smtp/project
java.lang.NullPointerException
at java.base/java.util.regex.Matcher.getTextLength(Matcher.java:1770)
at java.base/java.util.regex.Matcher.reset(Matcher.java:416)
at java.base/java.util.regex.Matcher.(Matcher.java:253)
at java.base/java.util.regex.Pattern.matcher(Pattern.java:1133)
at java.base/java.util.regex.Pattern.split(Pattern.java:1261)
at java.base/java.util.regex.Pattern.split(Pattern.java:1334)
at sbt.IO$.pathSplit(IO.scala:744)
at sbt.IO$.parseClasspath(IO.scala:859)
at sbt.compiler.CompilerArguments.extClasspath(CompilerArguments.scala:62)
at sbt.compiler.MixedAnalyzingCompiler$.withBootclasspath(MixedAnalyzingCompiler.scala:189)
at sbt.compiler.MixedAnalyzingCompiler$.searchClasspathAndLookup(MixedAnalyzingCompiler.scala:167)
at sbt.compiler.MixedAnalyzingCompiler$.apply(MixedAnalyzingCompiler.scala:177)
at sbt.compiler.IC$.incrementalCompile(IncrementalCompiler.scala:138)
at sbt.Compiler$.compile(Compiler.scala:128)
at sbt.Compiler$.compile(Compiler.scala:114)
at sbt.Defaults$.sbt$Defaults$$compileIncrementalTaskImpl(Defaults.scala:814)
at sbt.Defaults$$anonfun$compileIncrementalTask$1.apply(Defaults.scala:805)
at sbt.Defaults$$anonfun$compileIncrementalTask$1.apply(Defaults.scala:803)
at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40)
at sbt.std.Transform$$anon$4.work(System.scala:63)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
at sbt.Execute.work(Execute.scala:235)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
[error] (compile:compileIncremental) java.lang.NullPointerException

Any tips on what I can do to address this?