Build error with quickstart guide

After:

git clone https://github.com/eclipse/deeplearning4j-examples.git
cd dl4j-examples/
mvn clean install

I get a series of errors that look like this:

[INFO] --- maven-compiler-plugin:3.6.1:compile (default-compile) @ dl4j-examples ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. build is platform dependent!
[INFO] Compiling 118 source files to C:\Users\leotr\OneDrive\Documents\GitHub\deeplearning4j-examples\dl4j-examples\target\classes
[INFO] /C:/Users/leotr/OneDrive/Documents/GitHub/deeplearning4j-examples/dl4j-examples/src/main/java/org/deeplearning4j/examples/advanced/modelling/textclassification/pretrainedword2vec/SentimentExampleIterator.java: C:\Users\leotr\OneDrive\Documents\GitHub\deeplearning4j-examples\dl4j-examples\src\main\java\org\deeplearning4j\examples\advanced\modelling\textclassification\pretrainedword2vec\SentimentExampleIterator.java uses or overrides a deprecated API.
[INFO] /C:/Users/leotr/OneDrive/Documents/GitHub/deeplearning4j-examples/dl4j-examples/src/main/java/org/deeplearning4j/examples/advanced/modelling/textclassification/pretrainedword2vec/SentimentExampleIterator.java: Recompile with -Xlint:deprecation for details.
[INFO] /C:/Users/leotr/OneDrive/Documents/GitHub/deeplearning4j-examples/dl4j-examples/src/main/java/org/deeplearning4j/examples/advanced/modelling/textclassification/customcorpusword2vec/PrepareWordVector.java: Some input files use unchecked or unsafe operations.
[INFO] /C:/Users/leotr/OneDrive/Documents/GitHub/deeplearning4j-examples/dl4j-examples/src/main/java/org/deeplearning4j/examples/advanced/modelling/textclassification/customcorpusword2vec/PrepareWordVector.java: Recompile with -Xlint:unchecked for details.
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /C:/Users/leotr/OneDrive/Documents/GitHub/deeplearning4j-examples/dl4j-examples/src/main/java/org/deeplearning4j/examples/advanced/modelling/densenet/model/DenseNetBuilder.java:[90,63] cannot find symbol
  symbol:   class List
  location: class org.deeplearning4j.examples.advanced.modelling.densenet.model.DenseNetBuilder
[ERROR] /C:/Users/leotr/OneDrive/Documents/GitHub/deeplearning4j-examples/dl4j-examples/src/main/java/org/deeplearning4j/examples/advanced/modelling/densenet/model/DenseNetBuilder.java:[148,15] cannot find symbol
  symbol:   class List
  location: class org.deeplearning4j.examples.advanced.modelling.densenet.model.DenseNetBuilder
[ERROR] /C:/Users/leotr/OneDrive/Documents/GitHub/deeplearning4j-examples/dl4j-examples/src/main/java/org/deeplearning4j/examples/advanced/modelling/densenet/model/DenseNetBuilder.java:[193,38] cannot find symbol
  symbol:   class List
  location: class org.deeplearning4j.examples.advanced.modelling.densenet.model.DenseNetBuilder
[ERROR] /C:/Users/leotr/OneDrive/Documents/GitHub/deeplearning4j-examples/dl4j-examples/src/main/java/org/deeplearning4j/examples/advanced/modelling/densenet/model/DenseNetModel.java:[45,9] cannot find symbol
  symbol:   class List
  location: class org.deeplearning4j.examples.advanced.modelling.densenet.model.DenseNetModel
[ERROR] /C:/Users/leotr/OneDrive/Doc

Any idea why?