I'm using JetBrains Gogland 1.0 EAP on Mac OS, everything works good, but debugging (based on delve) will raise the error

could not launch process: could not fork/exec

How can I fix it?

Updated the answer according to @Alexander's comment

The truth is Gogland is using its own dlv binary, not the one you installed (manually or from brew install), and its own dlv binary seems not certificated or could be outdated in Mac's keychain, then it will cause the error above each time we run it.

To fix it:

Install your own dlv

Installing it manually or using the brew both are ok [official doc] and please make sure your cert have been set correctly

Setup gogland, point dlv path to your own dlv binary

Step 1

Invoke Help | Edit Custom Properties… and add new line there:

dlv.path=/path/to/custom/delve

Step 2

Restart and try to debug again, it should fix the issue.