{"action":"opened","issue":{"url":"https://api.github.com/repos/sass/sass/issues/1978","labels_url":"https://api.github.com/repos/sass/sass/issues/1978/labels{/name}","comments_url":"https://api.github.com/repos/sass/sass/issues/1978/comments","events_url":"https://api.github.com/repos/sass/sass/issues/1978/events","html_url":"https://github.com/sass/sass/issues/1978","id":129487826,"number":1978,"title":"undefined method `to_tree' for nil:NilClass","user":{"login":"nooperpudd","id":1549732,"avatar_url":"https://avatars.githubusercontent.com/u/1549732?v=3","gravatar_id":"","url":"https://api.github.com/users/nooperpudd","html_url":"https://github.com/nooperpudd","followers_url":"https://api.github.com/users/nooperpudd/followers","following_url":"https://api.github.com/users/nooperpudd/following{/other_user}","gists_url":"https://api.github.com/users/nooperpudd/gists{/gist_id}","starred_url":"https://api.github.com/users/nooperpudd/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/nooperpudd/subscriptions","organizations_url":"https://api.github.com/users/nooperpudd/orgs","repos_url":"https://api.github.com/users/nooperpudd/repos","events_url":"https://api.github.com/users/nooperpudd/events{/privacy}","received_events_url":"https://api.github.com/users/nooperpudd/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-01-28T15:43:49Z","updated_at":"2016-01-28T15:43:49Z","closed_at":null,"body":"ruby 2.0.0p481 (2014-05-08 revision 45883) [universal.x86_64-darwin14]\r\nSass 3.4.21 (Selective Steve)\r\nCompass 1.0.3 (Polaris)\r\n\r\n[Listen warning]: Change block raise an execption: undefined method `to_tree' for nil:NilClass\r\nBacktrace:\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/staleness_checker.rb:184:in `tree'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/staleness_checker.rb:174:in `compute_dependencies'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/staleness_checker.rb:149:in `dependencies'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/staleness_checker.rb:125:in `dependencies_stale?'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/staleness_checker.rb:166:in `block in dependency_updated?'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/staleness_checker.rb:125:in `each'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/staleness_checker.rb:125:in `any?'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/staleness_checker.rb:125:in `dependencies_stale?'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/staleness_checker.rb:166:in `block in dependency_updated?'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/staleness_checker.rb:81:in `call'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/staleness_checker.rb:81:in `stylesheet_modified_since?'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/staleness_checker.rb:69:in `stylesheet_needs_update?'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/compiler.rb:211:in `block in update_stylesheets'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/compiler.rb:209:in `each'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/compiler.rb:209:in `update_stylesheets'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/compiler.rb:471:in `on_file_changed'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/lib/sass/plugin/compiler.rb:328:in `block in watch'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/vendor/listen/lib/listen/listener.rb:252:in `call'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/vendor/listen/lib/listen/listener.rb:252:in `on_change'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/vendor/listen/lib/listen/listener.rb:290:in `block in initialize_adapter'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/vendor/listen/lib/listen/adapter.rb:254:in `call'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/vendor/listen/lib/listen/adapter.rb:254:in `report_changes'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/vendor/listen/lib/listen/adapter.rb:323:in `poll_changed_directories'\r\n        /Library/Ruby/Gems/2.0.0/gems/sass-3.4.21/vendor/listen/lib/listen/adapter.rb:299:in `block in start_poller'\r\n"}}