[!] Error: rpc error: code = Unknown desc = Invalid format: shellcode - Please make sure Metasploit framework >= v6.2 is installed and msfvenom/msfconsole are in your PATH

[teamdArk5]

1. installed sliver and msf on ubuntu 22
2. when i exec "generate stager --lhost 192.168.5.131 --lport 1234 --protocol http --format shellcode --save /tmp"
3. error

[!] Error: rpc error: code = Unknown desc = Invalid format: shellcode - Please make sure Metasploit framework >= v6.2 is installed and msfvenom/msfconsole are in your PATH

i can run msf with "msfconsole"

[Gorship]

Facing the same issue myself - fresh install so perhaps I've done something wrong? Cant seem to find anything online.

[moloch--]

Could just be a bug in our code, note that generate stager is just a helper ontop of msfvenom, you can just run msfvenom directly to get the same stager shellcode.

[rkervella]

It's a long standing bug, IIRC the cmd.Run call hangs and the context times out, and it's interpreted as a runtime error. Or at least that's how I remember the issue. As @moloch-- says, you can use msfvenom instead to generate payloads, that's basically what sliver does anyway.