{"action":"created","issue":{"url":"https://api.github.com/repos/rackt/react-router/issues/2288","labels_url":"https://api.github.com/repos/rackt/react-router/issues/2288/labels{/name}","comments_url":"https://api.github.com/repos/rackt/react-router/issues/2288/comments","events_url":"https://api.github.com/repos/rackt/react-router/issues/2288/events","html_url":"https://github.com/rackt/react-router/issues/2288","id":111715274,"number":2288,"title":"Error after upgrading to react 0.14 ","user":{"login":"mvlach","id":6176546,"avatar_url":"https://avatars.githubusercontent.com/u/6176546?v=3","gravatar_id":"","url":"https://api.github.com/users/mvlach","html_url":"https://github.com/mvlach","followers_url":"https://api.github.com/users/mvlach/followers","following_url":"https://api.github.com/users/mvlach/following{/other_user}","gists_url":"https://api.github.com/users/mvlach/gists{/gist_id}","starred_url":"https://api.github.com/users/mvlach/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mvlach/subscriptions","organizations_url":"https://api.github.com/users/mvlach/orgs","repos_url":"https://api.github.com/users/mvlach/repos","events_url":"https://api.github.com/users/mvlach/events{/privacy}","received_events_url":"https://api.github.com/users/mvlach/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/rackt/react-router/labels/needs-help","name":"needs-help","color":"0052cc"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-10-15T21:51:13Z","updated_at":"2015-10-27T07:57:35Z","closed_at":"2015-10-16T22:57:21Z","body":"Hi,\r\n\r\nI have problem with \r\n\r\n```\r\n<Link to=\"/\" >Home</Link>\r\n```\r\n\r\nWhen I delete this from code, everything works good.\r\nOtherwise....\r\n\r\n```\r\nWarning: React.createElement: type should not be null, undefined, boolean, or number. It should be a string (for DOM elements) or a ReactClass (for composite components). Check the render method of `Header`.\r\nError: Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. Check the render method of `Header`.\r\n ```"},"comment":{"url":"https://api.github.com/repos/rackt/react-router/issues/comments/151405903","html_url":"https://github.com/rackt/react-router/issues/2288#issuecomment-151405903","issue_url":"https://api.github.com/repos/rackt/react-router/issues/2288","id":151405903,"user":{"login":"only-style","id":4972562,"avatar_url":"https://avatars.githubusercontent.com/u/4972562?v=3","gravatar_id":"","url":"https://api.github.com/users/only-style","html_url":"https://github.com/only-style","followers_url":"https://api.github.com/users/only-style/followers","following_url":"https://api.github.com/users/only-style/following{/other_user}","gists_url":"https://api.github.com/users/only-style/gists{/gist_id}","starred_url":"https://api.github.com/users/only-style/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/only-style/subscriptions","organizations_url":"https://api.github.com/users/only-style/orgs","repos_url":"https://api.github.com/users/only-style/repos","events_url":"https://api.github.com/users/only-style/events{/privacy}","received_events_url":"https://api.github.com/users/only-style/received_events","type":"User","site_admin":false},"created_at":"2015-10-27T07:57:35Z","updated_at":"2015-10-27T07:57:35Z","body":" I get the same error, how to solve the problem?? "}}