you might give the error like this:
Error: Module version mismatch. Expected 11, got 1.
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (/home/user/node_modules/xml2json/node_modules/node-expat/lib/node-expat.js:4:13)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
and then, you can notice the error in module or somewhere.
this is because you have updated your node, you might rebuild the module found above.
i revole my question by reinstall(remove, then install) xml2json.
good luck!
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