Debug: could not launch process: could not get thread count

[richardpeng]

• Plugin version (or commit hash): 0.12.1799
• IDE name and version: IntelliJ IDEA 2016.2.5, Build #IU-162.2228.15, built on October 14, 2016
• Java version: 1.8.0_112-release-287-b2 x86_64
• OS name and version: macOS Sierra 10.12.1
• Command line tools version: 8.0.0.0.1.1472435881
• What are you trying to do? Debug and run an Application
• What would you expect to happen? The program to run and debugging to start
• What happens?

could not launch process: could not get thread count
Process finished with exit code 1

This issue started when I updated to the latest version of macOS Sierra. I can still Run Applications using the IDE, just not Debug.

package main

import "fmt"

func main()  {
    fmt.Println("hello world")
}

[qianshangding]

me too

[petr-korobeinikov]

This is a known delve issue: derekparker/delve/issues/645.

[oferitz]

Seems like the delve issue (derekparker/delve#645) was fixed. Can we have it fixed here also?

[dlsniper]

@oferitz it seems the issue is still open. Until it's merged into delve I don't think we should build our own delve. @zolotov / @ignatov what do you think/

[oferitz]

@dlsniper you are right i was confused by #577. it's probably good idea to wait.

[oferitz]

Seems like the delve issue was fixed and merged. Can we have it fixed here also?

[itzg]

When is the planned release for this fix into the plugin and/or Gogland?

[zolotov]

@itzg it was fixed in plugin 20th December and in the Gogland in the very first EAP. What's the version you use?

[itzg]

@zolotov I just installed Gogland to eliminate the possibility I had dirtied my IntelliJ install, so I'm running

Gogland (1.0 Preview) 1.0 EAP
Build #GO-163.10615.22, built on January 9, 2017
Gogland EAP User
Expiration date: April 9, 2017
JRE: 1.8.0_112-release-b460 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o

Since I'm working on an open source project, here's the execution line and error:

/usr/local/Cellar/go/1.7.4_1/libexec/bin/go test -c -o "/private/var/folders/xf/96hzdx9n24s22r3_2wnw4_bxns4t3x/T/TestEleSession_HeartbeatSending in session_test.go (1)go" -gcflags "-N -l" github.com/racker/rackspace-monitoring-poller/poller
"/Applications/Gogland 1.0 EAP.app/Contents/bin/dlv" --listen=localhost:51220 --headless=true --api-version=2 exec "/private/var/folders/xf/96hzdx9n24s22r3_2wnw4_bxns4t3x/T/TestEleSession_HeartbeatSending in session_test.go (1)go" -- -test.v -test.run ^TestEleSession_HeartbeatSending$

could not launch process: could not get thread count

Process finished with exit code 1

[itzg]

...and checking dlv version specifically:

~ "/Applications/Gogland 1.0 EAP.app/Contents/bin/dlv" version
Delve Debugger
Version: 0.11.0-alpha
Build:

[zolotov]

@itzg likely it's the issue of delve, so it makes sense to help delve-maintainers to recreate this issue.

@dlsniper @ignatov could you look at it, please?

[itzg]

FYI, this is definitely still a delve issue since I recreated their code signing cert and built latest from master with same results when running dlv debug directly. I'll find or report a new issue over there.

[zolotov]

@itzg thank you for update and investigation

[itzg]

@zolotov , thank you for you ultra-fast responses.

Here is the new issue I opened https://github.com/derekparker/delve/issues/714

[linuxcer]

in your go project path, run follows command

go get github.com/derekparker/delve/cmd/dlv
cd src/github.com/derekparker/delve/cmd/dlv
go build 
mv ~/Library/Application\ Support/IdeaIC2016.2/Go/lib/dlv/mac/dlv ~/Library/Application\ Support/IdeaIC2016.2/Go/lib/dlv/mac/dlv_bak
cp dlv ~/Library/Application\ Support/IdeaIC2016.2/Go/lib/dlv/mac/

ok, it's works!

[dolphinsboy]

@linuxcer It works for me, thank you!

IntelliJ IDEA 2017.3.4 (Ultimate Edition) JRE: 1.8.0_152-release-1024-b11 x86_64 JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o Mac OS X 10.13.3