Compilation is not working by following steps given in Readme

[vinaymarpina]

I have latest version of Protobuf 3.7.1 after the error tried with 3.2.0 thinking older stable version may solve the issue but issue still persists.
remote_fused_graph_execute_info.proto is not getting compiled.

tensorframesmaster/src/main/protobuf/tensorflow/core/framework/remote_fused_graph_execute_info.proto

java.lang.RuntimeException: error occurred while compiling protobuf files: Cannot run program "protoc": error=2, No such file or directory
at sbtprotobuf.ScopedProtobufPlugin.executeProtoc(ProtobufPlugin.scala:99)
at sbtprotobuf.ScopedProtobufPlugin.sbtprotobuf$ScopedProtobufPlugin$$compile(ProtobufPlugin.scala:115)
at sbtprotobuf.ScopedProtobufPlugin$$anonfun$sourceGeneratorTask$1$$anonfun$5.apply(ProtobufPlugin.scala:151)
at sbtprotobuf.ScopedProtobufPlugin$$anonfun$sourceGeneratorTask$1$$anonfun$5.apply(ProtobufPlugin.scala:150)
at sbt.FileFunction$$anonfun$cached$1.apply(Tracked.scala:253)
at sbt.FileFunction$$anonfun$cached$1.apply(Tracked.scala:253)
at sbt.FileFunction$$anonfun$cached$2$$anonfun$apply$3$$anonfun$apply$4.apply(Tracked.scala:267)
at sbt.FileFunction$$anonfun$cached$2$$anonfun$apply$3$$anonfun$apply$4.apply(Tracked.scala:263)