Didn't know of that feature really, but I can reproduce this as well. For reference the error logs on rocketchat are: Jan 11 14:27:52 Exception while invoking method 'addWebdavAccount' TypeError: Webdav is not a constructor Jan 11 14:27:52 at Promise.asyncApply (packages/rocketchat:webdav/server/methods/addWebdavAccount.js:25:18) Jan 11 14:27:52 at /app/code/bundle/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40 Jan 11 14:28:35 Exception while invoking method 'addWebdavAccount' TypeError: Webdav is not a constructor Jan 11 14:28:35 at Promise.asyncApply (packages/rocketchat:webdav/server/methods/addWebdavAccount.js:25:18) Jan 11 14:28:35 at /app/code/bundle/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40 Haven't investigated further yet.