chef-provisioning security group not found

gistfile1.sh

Unfortunately, I seem to be stuck when I run 

chef-client --local-mode --runlist 'recipe[web::servers]' 

under the Provision a Server section of the walkthrough. I do have us-west-2 specified in my ~/.aws/config file, so it's finding the AMI just fine, but it's still erroring out with this error (see below - it's not finding the security group it expects). Any advice on how I can move past this? 

[vagrant@localhost chef-repo]$ chef-client --local-mode --runlist 'recipe[web::servers]' 
[2014-12-22T03:31:44+00:00] WARN: No config file found or specified on command line, using command line options. 
Starting Chef Client, version 11.18.0.rc.1 
resolving cookbooks for run list: ["web::servers"] 
Synchronizing Cookbooks: 
- web 
Compiling Cookbooks... 
Converging 3 resources 
Recipe: web::servers 
* aws_security_group[webserver-ssh] action create 

================================================================================ 
Error executing action `create` on resource 'aws_security_group[webserver-ssh]' 
================================================================================ 

AWS::EC2::Errors::InvalidGroup::NotFound 
---------------------------------------- 
The security group 'sg-41a37024' does not exist 

Resource Declaration: 
--------------------- 
# In /home/vagrant/.chef/local-mode-cache/cache/cookbooks/web/recipes/servers.rb 

5: aws_security_group 'webserver-ssh' do 
6: inbound_rules [{:ports => 22, :protocol => :tcp, :sources => ['0.0.0.0/0'] }] 
7: end 
8: 

Compiled Resource: 
------------------ 
# Declared in /home/vagrant/.chef/local-mode-cache/cache/cookbooks/web/recipes/servers.rb:5:in `from_file' 

aws_security_group("webserver-ssh") do 
action :create 
retries 0 
retry_delay 2 
guard_interpreter :default 
id "webserver-ssh" 
security_group_id "sg-41a37024" 
cookbook_name "web" 
recipe_name "servers" 
inbound_rules [{:ports=>22, :protocol=>:tcp, :sources=>["0.0.0.0/0"]}] 
end 


Running handlers: 
[2014-12-22T03:31:48+00:00] ERROR: Running exception handlers 
Running handlers complete 
[2014-12-22T03:31:48+00:00] ERROR: Exception handlers complete 
[2014-12-22T03:31:48+00:00] FATAL: Stacktrace dumped to /home/vagrant/.chef/local-mode-cache/cache/chef-stacktrace.out 
Chef Client failed. 0 resources updated in 3.433701056 seconds 
[2014-12-22T03:31:48+00:00] ERROR: aws_security_group[webserver-ssh] (web::servers line 5) had an error: AWS::EC2::Errors::InvalidGroup::NotFound: The security group 'sg-41a37024' does not exist 
[2014-12-22T03:31:48+00:00] FATAL: Chef::Exceptions::ChildConvergeError: Chef run process exited unsuccessfully (exit code 1)