{"action":"created","issue":{"url":"https://api.github.com/repos/firebase/AndroidChat/issues/18","labels_url":"https://api.github.com/repos/firebase/AndroidChat/issues/18/labels{/name}","comments_url":"https://api.github.com/repos/firebase/AndroidChat/issues/18/comments","events_url":"https://api.github.com/repos/firebase/AndroidChat/issues/18/events","html_url":"https://github.com/firebase/AndroidChat/issues/18","id":60694685,"number":18,"title":" java.lang.NoClassDefFoundError: com.firebase.client.Firebase","user":{"login":"datomnurdin","id":5416242,"avatar_url":"https://avatars.githubusercontent.com/u/5416242?v=3","gravatar_id":"","url":"https://api.github.com/users/datomnurdin","html_url":"https://github.com/datomnurdin","followers_url":"https://api.github.com/users/datomnurdin/followers","following_url":"https://api.github.com/users/datomnurdin/following{/other_user}","gists_url":"https://api.github.com/users/datomnurdin/gists{/gist_id}","starred_url":"https://api.github.com/users/datomnurdin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/datomnurdin/subscriptions","organizations_url":"https://api.github.com/users/datomnurdin/orgs","repos_url":"https://api.github.com/users/datomnurdin/repos","events_url":"https://api.github.com/users/datomnurdin/events{/privacy}","received_events_url":"https://api.github.com/users/datomnurdin/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":6,"created_at":"2015-03-11T17:20:09Z","updated_at":"2015-07-01T06:41:22Z","closed_at":null,"body":"I just run you app then suddenly crash. I just found out that your android SDK don't have ```com.firebase.client.Firebase``` class\r\n\r\nError message\r\n\r\n```\r\n03-12 01:19:31.664: E/AndroidRuntime(29209): java.lang.NoClassDefFoundError: com.firebase.client.Firebase\r\n```"},"comment":{"url":"https://api.github.com/repos/firebase/AndroidChat/issues/comments/117468337","html_url":"https://github.com/firebase/AndroidChat/issues/18#issuecomment-117468337","issue_url":"https://api.github.com/repos/firebase/AndroidChat/issues/18","id":117468337,"user":{"login":"ShreyashPromact","id":8598335,"avatar_url":"https://avatars.githubusercontent.com/u/8598335?v=3","gravatar_id":"","url":"https://api.github.com/users/ShreyashPromact","html_url":"https://github.com/ShreyashPromact","followers_url":"https://api.github.com/users/ShreyashPromact/followers","following_url":"https://api.github.com/users/ShreyashPromact/following{/other_user}","gists_url":"https://api.github.com/users/ShreyashPromact/gists{/gist_id}","starred_url":"https://api.github.com/users/ShreyashPromact/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ShreyashPromact/subscriptions","organizations_url":"https://api.github.com/users/ShreyashPromact/orgs","repos_url":"https://api.github.com/users/ShreyashPromact/repos","events_url":"https://api.github.com/users/ShreyashPromact/events{/privacy}","received_events_url":"https://api.github.com/users/ShreyashPromact/received_events","type":"User","site_admin":false},"created_at":"2015-07-01T06:41:22Z","updated_at":"2015-07-01T06:41:22Z","body":"@puf @datomnurdin \r\n\r\nHello, I am not sure, where is the exact issue. But it is resolved when i have updated the google plat service library.\r\n\r\nInitially i don't know the version of the google play library. So i have added it like below:\r\ncompile 'com.google.android.gms:play-services:4.+'  \r\n\r\n( I have added like this because somewhere it is written that, with this it will automatically detect the version of the google play store.)\r\nHowever i am not getting compilation error or any other problem but it get crashed on the Lower version of android devices on mention line of  Firebase.\r\n\r\nI have manually, remove login one by one and then add it and when i change the play service library, it seems like proper working. I have added below library version of the google plays service\r\n\r\ncompile 'com.google.android.gms:play-services:4.1.0'\r\n\r\nIt is really strange issue. Firebase should work with any google play library version but it is not for android lower version.\r\n\r\nAnyway, thanks for the reply and support for the issue. I would like you to check in the google play services library and check whether there is issue with that or not.\r\n\r\nThanks.\r\n\r\nSincerely,\r\nShreyash"}}