fedena : rake aborted school not selected - ruby-on-rails

Question

I was installing fedena on ubuntu installed on wsl and the database creation and migration was successful but when run the command rake fedena:plugins:install_all to install the plugins. in the middle this error pops up that school Not Selected and here is the error trace.
School Not Selected
/root/fedena/vendor/plugins/acts_as_multi_school/lib/multischool/read.rb:46:in `with_school'
/root/fedena/vendor/plugins/acts_as_multi_school/lib/multischool/read.rb:22:in `find_with_school'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/activerecord-2.3.5/lib/active_record/base.rb:1954:in `find'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/activerecord-2.3.5/lib/active_record/base.rb:1954:in `find_or_create_by_config_key'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/activerecord-2.3.5/lib/active_record/base.rb:1940:in `send'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/activerecord-2.3.5/lib/active_record/base.rb:1940:in `method_missing_without_paginate'
/root/fedena/vendor/plugins/will_paginate/lib/will_paginate/finder.rb:170:in `method_missing'
/root/fedena/app/models/configuration.rb:90:in `find_or_create_by_config_key'
/root/fedena/db/seeds.rb:26
/root/fedena/db/seeds.rb:2:in `each'
/root/fedena/db/seeds.rb:2
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in `load_without_new_constant_marking'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in `load'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in `load'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rails-2.3.5/lib/tasks/databases.rake:215
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:636:in `call'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:636:in `execute'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:631:in `each'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:631:in `execute'
/root/fedena/lib/tasks/fedena_plugin_install.rake:31
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:636:in `call'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:636:in `execute'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:631:in `each'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:631:in `execute'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain'
/usr/local/rvm/rubies/ruby-1.8.7-p374/lib/ruby/1.8/monitor.rb:242:in `synchronize'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:583:in `invoke'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2029:in `each'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2001:in `run'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/lib/rake.rb:1998:in `run'
/usr/local/rvm/gems/ruby-1.8.7-p374/gems/rake-0.8.7/bin/rake:31
/usr/local/rvm/gems/ruby-1.8.7-p374/bin/rake:19:in `load'
/usr/local/rvm/gems/ruby-1.8.7-p374/bin/rake:19
the code causing this error appears to be this code:
module MultiSchool
module Read
def self.extended (base)
eigen_class = class << base;self;end
["find","count","sum","exists?"].each do |method|
matches = method.match /([\w\d_]+)(\?|!|=)?$/
eigen_class.send :define_method, "#{matches[1]}_with_school#{matches[2]}" do |*args|
options = args.extract_options!
skip_multischool = options.delete :skip_multischool
args << options unless options.empty?
result = if skip_multischool || Thread.current[:skip_multischool].present?
send("#{matches[1]}_without_school#{matches[2]}",*args)
else
with_school do
send("#{matches[1]}_without_school#{matches[2]}",*args)
end
end
result
end
eigen_class.send :alias_method_chain, method, :school
end
end
def skip_multischool
Thread.current[:skip_multischool]=true
yield
ensure
Thread.current[:skip_multischool]=nil
end
private
def with_school
target_school = MultiSchool.current_school
if target_school.nil?
raise MultiSchool::Exceptions::SchoolNotSelected,"School Not Selected"
else
with_scope(:find => {:conditions => {:school_id => target_school.id}}) do
yield
end
end
end
end
end
looks the MultiSchool.current_school is returning nil which sets the variable target_school to nil so the above exception occurs of school not selected but I don't know where to from here?
Could you please help me out this issue.