{"action":"opened","issue":{"url":"https://api.github.com/repos/twosigma/beaker-notebook/issues/1920","labels_url":"https://api.github.com/repos/twosigma/beaker-notebook/issues/1920/labels{/name}","comments_url":"https://api.github.com/repos/twosigma/beaker-notebook/issues/1920/comments","events_url":"https://api.github.com/repos/twosigma/beaker-notebook/issues/1920/events","html_url":"https://github.com/twosigma/beaker-notebook/issues/1920","id":94508920,"number":1920,"title":"The input line is too long -- affects R plugin and perhaps others","user":{"login":"aolney","id":4432084,"avatar_url":"https://avatars.githubusercontent.com/u/4432084?v=3","gravatar_id":"","url":"https://api.github.com/users/aolney","html_url":"https://github.com/aolney","followers_url":"https://api.github.com/users/aolney/followers","following_url":"https://api.github.com/users/aolney/following{/other_user}","gists_url":"https://api.github.com/users/aolney/gists{/gist_id}","starred_url":"https://api.github.com/users/aolney/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/aolney/subscriptions","organizations_url":"https://api.github.com/users/aolney/orgs","repos_url":"https://api.github.com/users/aolney/repos","events_url":"https://api.github.com/users/aolney/events{/privacy}","received_events_url":"https://api.github.com/users/aolney/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-07-11T21:30:06Z","updated_at":"2015-07-11T21:30:06Z","closed_at":null,"body":"Seems to be a classic cmd bug in 1.3.1. The problem is with set CLASSPATH being too long. This problem exists for the R plugin and may exist elsewhere:\r\n```\r\nC:\\Users\\aolne_000\\beaker-notebook-v1.3.1-0-g3072e5e-windows\\config\\plugins\\eval\\r>bin\\r\r\nThe input line is too long.\r\nThe syntax of the command is incorrect.\r\nC:\\Users\\aolne_000\\beaker-notebook-v1.3.1-0-g3072e5e-windows\\config\\plugins\\eval\\r>\r\n```\r\nThis bug prevents the R plugin from working on my machine (Win 8.1 Pro x64). The offending line is line 72. I just changed it to:\r\n```\r\nset CLASSPATH=%APP_HOME%\\lib\\*\r\n```\r\nwhich works because all the jars on the offending line were in this directory anyways. \r\n\r\nThis change makes the R plugin work for me. It also has the possible advantage of being easier to read/maintain."}}