npm seems to give me either an old version or a broken version

[DanielCollins]

Forgive me if this is user error or expected behavior; I am new to npm.

I originally had "typescript-eslint-parser": "0.1.0-alpha-1" in package.json, but, examining the contents of node_modules/typescript-eslint-parser/parser.js showed that the version looked old and did not include the recent about JSX syntax, which typescript-eslint-parser-0.1.0-alpha.1.zip from github did include. Eventually I realised the difference is the . instead of - after alpha. Confusing.

Changing to "typescript-eslint-parser": "0.1.0-alpha.1" in package.json, seems to make it install a newer version, however i get this stack trace when invoking eslint, with typescript-eslint-parser configured as the parser:

TypeError: Cannot read property 'loc' of undefined
    at getNodeIndent (node_modules/eslint/lib/rules/indent.js:219:54)
    at checkNodeIndent (node_modules/eslint/lib/rules/indent.js:248:30)
    at node_modules/eslint/lib/rules/indent.js:272:17
    at Array.forEach (native)
    at checkNodesIndent (node_modules/eslint/lib/rules/indent.js:266:19)
    at EventEmitter.Program (node_modules/eslint/lib/rules/indent.js:706:21)
    at emitOne (events.js:101:20)
    at EventEmitter.emit (events.js:188:7)
    at NodeEventGenerator.enterNode (node_modules/eslint/lib/util/node-event-generator.js:40:22)
    at CodePathAnalyzer.enterNode (node_modules/eslint/lib/code-path-analysis/code-path-analyzer.js:607:23)

[nzakas]

This project is still in the experimental phase and is not guaranteed to work. Only a small subset of functionality works, basically only strict ES6 syntax. It's not worth tracking bugs until threads a reasonable expectation that the functionality is complete.