node.js - upgraded node to v0.8 and started receiving an error for sys/util -

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i upgraded node v0.6.12 0.80 , started receiving error below - have removed sys module import still getting error. helpful hints helpful. not suing stylus either.

path.exists called `fs.exists`.  sys.js:1  throw new error(  error: "sys" module called "util". @ sys.js:1:69 @ nativemodule.compile (node.js:602:5) @ function.nativemodule.require (node.js:570:18) @ function.module._load (module.js:297:25) @ module.require (module.js:362:17) @ require (module.js:378:17) @ object.<anonymous> (/node/node_modules/stylus/lib/token.js:12:15) @ module._compile (module.js:449:26) @ object.module._extensions..js (module.js:467:10) @ module.load (module.js:356:32)

upgrade node v0.8.1. solve problem


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