make -jN run Error and cannot locate project 'chisel' in 'chisel3' directory

[irays18]

$ make -j4 run
cd /path/rocket/rocket-chip && java -Xmx2G -Xss8M -jar /path/rocket/rocket-chip/sbt-launch.jar -Dsbt.sourcemode=true -Dsbt.workspace=$PWD assembly
[info] welcome to sbt 1.3.13 (Ubuntu Java 11.0.9.1)
[info] loading settings for project rocket-chip-build from plugins.sbt ...
[info] loading project definition from /path/rocket/rocket-chip/project
[info] loading settings for project rocketchip from build.sbt ...
[error] No project 'chisel' in 'file:///path/rocket/rocket-chip/chisel3/'.
[error] Valid project IDs: chisel3
[error] Use 'last' for the full log.
Project loading failed: (r)etry, (q)uit, (l)ast, or (i)gnore? 

What is the way to proceed from now?