> [email protected] postinstall /opt/www/xxx/node_modules/protobufjs
> node scripts/postinstall

module.js:472
    throw err;
    ^

Error: Cannot find module '/opt/www/xxx/node_modules/protobufjs/scripts/postinstall'
    at Function.Module._resolveFilename (module.js:470:15)
    at Function.Module._load (module.js:418:25)
    at Module.runMain (module.js:605:10)
    at run (bootstrap_node.js:427:7)
    at startup (bootstrap_node.js:151:9)
    at bootstrap_node.js:542:3