undefined method `safe_load' for Psych:Module

[trinistry]

Hello,
this is what I am getting on "u3d run" on AWS linux.

`[root@ip-xxx JenkinsTest]# gem list

*** LOCAL GEMS ***

bigdecimal (1.2.0)
colored (1.2)
commander (4.4.3)
file-tail (1.2.0)
filesize (0.1.1)
highline (1.7.8)
inifile (3.0.0)
json (1.8.3)
plist (3.3.0)
psych (2.0.0)
rdoc (4.2.2)
security (0.1.3)
tins (1.15.0)
u3d (1.0.5)`

[lacostej]

Hello @trinistry, interesting problem!

Questions: which ruby version are you using?

According to ruby/psych#119 , safe_load should have been in psych 2.0.0 but in https://github.com/ruby/psych/commits/d66158b8af4083cf2642a060751a6b9d7d8c0b27?after=d66158b8af4083cf2642a060751a6b9d7d8c0b27+34&path%5B%5D=lib&path%5B%5D=psych.rb I wonder if it was broken until 2.0.1.

As a consequence, could you try updating psych to 2.0.1? I am not really sure who pulls psych in, as I don't have a dependency to it on my system. I think it comes with old rubies. I don't think u3d is supported on ruby < 2.1 yet.

[lacostej]

I made some tests on a system ruby on a Mac and I reproduce the issue.

Updating psych solves it, but there are other issues with using ruby < 2.1

I would recommend using ruby 2.1 or later. There are other issues with ruby 2.0 when coming from the system. E.g. openssl that comes with system.

[trinistry]

You are correct, I had ruby version 2.0.0. After upgrading to 2.4.0 the psych error is gone, thank you!

[lacostej]

@trinistry Great. Don't hesitate to send some feedback!