compile error when doing : ./sbt package

[lefromage]

[error] /home/ubuntu/Downloads/BIDMach_Spark/src/main/scala/BIDMat/MatIO.scala:31: type mismatch;
[error] found : java.io.DataOutput
[error] required: String
[error] case fM:FMat => {out.writeInt(MatTypeTag.FMat); HMat.saveFMat(out, fM);}
[error]

[javadba]

Seems to be fixed as of JCanney's commit on 6/10/16