The gapis server has exited with an error code of: -42

[Zeping-Jian]

GAPID Version: 1.6.1:338bb67b0fe291f56f31d69f11ea1a45ed7cfeb6
OS: mac os x x86_64

Please provide detailed steps that led to the error and copy-paste the stack trace.
Extra details from the logs and the trace file would be extra helpful.

com.google.gapid.Server$GapisInitException: Failed to connect to the graphics debugger
at com.google.gapid.Server.connectToServer(Server.java:103)
at com.google.gapid.Server.connect(Server.java:71)
at com.google.gapid.Main$UI.startup(Main.java:135)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)