{"action":"reopened","issue":{"url":"https://api.github.com/repos/arduino/Arduino/issues/4623","repository_url":"https://api.github.com/repos/arduino/Arduino","labels_url":"https://api.github.com/repos/arduino/Arduino/issues/4623/labels{/name}","comments_url":"https://api.github.com/repos/arduino/Arduino/issues/4623/comments","events_url":"https://api.github.com/repos/arduino/Arduino/issues/4623/events","html_url":"https://github.com/arduino/Arduino/issues/4623","id":137065644,"number":4623,"title":"Arduino IDE 1.6.5 Mac OS X 10.11 -- Error downloading package_index.json","user":{"login":"remct","id":17520477,"avatar_url":"https://avatars.githubusercontent.com/u/17520477?v=3","gravatar_id":"","url":"https://api.github.com/users/remct","html_url":"https://github.com/remct","followers_url":"https://api.github.com/users/remct/followers","following_url":"https://api.github.com/users/remct/following{/other_user}","gists_url":"https://api.github.com/users/remct/gists{/gist_id}","starred_url":"https://api.github.com/users/remct/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/remct/subscriptions","organizations_url":"https://api.github.com/users/remct/orgs","repos_url":"https://api.github.com/users/remct/repos","events_url":"https://api.github.com/users/remct/events{/privacy}","received_events_url":"https://api.github.com/users/remct/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":8,"created_at":"2016-02-28T15:57:22Z","updated_at":"2016-03-11T17:37:14Z","closed_at":null,"body":"I cannot get the Board Manager under Arduino IDE 1.6.5 on a Mac OS X 10.11 system to load.\r\n(My goal is to use that IDE to program a panstamp). \r\nI have installed the latest version of java:\r\n\r\njava version \"1.8.0_73\"\r\nJava(TM) SE Runtime Environment (build 1.8.0_73-b02)\r\nJava HotSpot(TM) 64-Bit Server VM (build 25.73-b02, mixed mode)\r\n\r\nI have disabled rootless SIP protection on my Mac as well. \r\nCan anyone help?\r\n\r\nI get the following errors:\r\n\r\nError downloading http://downloads.arduino.cc/packages/package_index.json\r\njava.lang.RuntimeException: java.lang.Exception: Error downloading http://downloads.arduino.cc/packages/package_index.json\r\n\tat cc.arduino.contributions.packages.ui.ContributionManagerUI$3.run(ContributionManagerUI.java:158)\r\n\tat java.lang.Thread.run(Thread.java:745)\r\nCaused by: java.lang.Exception: Error downloading http://downloads.arduino.cc/packages/package_index.json\r\n\tat cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:100)\r\n\tat cc.arduino.contributions.packages.ContributionInstaller.download(ContributionInstaller.java:279)\r\n\tat cc.arduino.contributions.packages.ContributionInstaller.downloadIndexAndSignature(ContributionInstaller.java:255)\r\n\tat cc.arduino.contributions.packages.ContributionInstaller.updateIndex(ContributionInstaller.java:237)\r\n\tat cc.arduino.contributions.packages.ui.ContributionManagerUI$3.run(ContributionManagerUI.java:154)\r\n\t... 1 more\r\nCaused by: java.io.IOException: Recevied invalid http status code from server: 416\r\n\tat cc.arduino.utils.network.FileDownloader.download(FileDownloader.java:160)\r\n\tat cc.arduino.contributions.DownloadableContributionsDownloader.download(DownloadableContributionsDownloader.java:98)\r\n\t... 5 more\r\n"}}