I got bellow message in update ,

i got bellow message in update do i need to do any action ?

npm WARN optional Skipping failed optional dependency /chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.1.1
npm WARN enoent ENOENT: no such file or directory, open ‘/home/frappe/frappe-bench/package.json’
npm WARN frappe-bench No description
npm WARN frappe-bench No repository field.
npm WARN frappe-bench No README data
npm WARN frappe-bench No license field.

Total is :

Please update your NodeJS version
/home/frappe/frappe-bench
├─┬ babel-core@6.24.1
│ ├─┬ babel-code-frame@6.22.0
│ │ ├─┬ chalk@1.1.3
│ │ │ ├── ansi-styles@2.2.1
│ │ │ ├── escape-string-regexp@1.0.5
│ │ │ ├─┬ has-ansi@2.0.0
│ │ │ │ └── ansi-regex@2.1.1
│ │ │ ├── strip-ansi@3.0.1
│ │ │ └── supports-color@2.0.0
│ │ ├── esutils@2.0.2
│ │ └── js-tokens@3.0.1
│ ├─┬ babel-generator@6.24.1
│ │ ├─┬ detect-indent@4.0.0
│ │ │ └─┬ repeating@2.0.1
│ │ │ └─┬ is-finite@1.0.2
│ │ │ └── number-is-nan@1.0.1
│ │ ├── jsesc@1.3.0
│ │ └── trim-right@1.0.1
│ ├── babel-helpers@6.24.1
│ ├── babel-messages@6.23.0
│ ├─┬ babel-register@6.24.1
│ │ ├── core-js@2.4.1
│ │ ├─┬ home-or-tmp@2.0.0
│ │ │ ├── os-homedir@1.0.2
│ │ │ └── os-tmpdir@1.0.2
│ │ └── source-map-support@0.4.14
│ ├─┬ babel-runtime@6.23.0
│ │ └── regenerator-runtime@0.10.4
│ ├── babel-template@6.24.1
│ ├─┬ babel-traverse@6.24.1
│ │ ├── globals@9.17.0
│ │ └─┬ invariant@2.2.2
│ │ └── loose-envify@1.3.1
│ ├─┬ babel-types@6.24.1
│ │ └── to-fast-properties@1.0.2
│ ├── babylon@6.17.0
│ ├── convert-source-map@1.5.0
│ ├─┬ debug@2.6.4
│ │ └── ms@0.7.3
│ ├── json5@0.5.1
│ ├── lodash@4.17.4
│ ├─┬ minimatch@3.0.3
│ │ └─┬ brace-expansion@1.1.7
│ │ ├── balanced-match@0.4.2
│ │ └── concat-map@0.0.1
│ ├── private@0.1.7
│ ├── slash@1.0.0
│ └── source-map@0.5.6
├─┬ babel-preset-babili@0.0.12
│ ├─┬ babel-plugin-minify-builtins@0.0.2
│ │ └── babel-helper-evaluate-path@0.0.3
│ ├─┬ babel-plugin-minify-constant-folding@0.0.4
│ │ └── jsesc@2.5.0
│ ├─┬ babel-plugin-minify-dead-code-elimination@0.1.4
│ │ ├── babel-helper-mark-eval-scopes@0.0.3
│ │ ├── babel-helper-remove-or-void@0.0.1
│ │ └── lodash.some@4.6.0
│ ├─┬ babel-plugin-minify-flip-comparisons@0.0.2
│ │ └── babel-helper-is-void-0@0.0.1
│ ├─┬ babel-plugin-minify-guarded-expressions@0.0.4
│ │ └── babel-helper-flip-expressions@0.0.2
│ ├── babel-plugin-minify-infinity@0.0.3
│ ├── babel-plugin-minify-mangle-names@0.0.8
│ ├── babel-plugin-minify-numeric-literals@0.0.1
│ ├── babel-plugin-minify-replace@0.0.1
│ ├─┬ babel-plugin-minify-simplify@0.0.8
│ │ ├── babel-helper-is-nodes-equiv@0.0.1
│ │ └── babel-helper-to-multiple-sequence-expressions@0.0.4
│ ├── babel-plugin-minify-type-constructors@0.0.4
│ ├── babel-plugin-transform-inline-consecutive-adds@0.0.2
│ ├── babel-plugin-transform-member-expression-literals@6.8.1
│ ├── babel-plugin-transform-merge-sibling-variables@6.8.2
│ ├── babel-plugin-transform-minify-booleans@6.8.0
│ ├── babel-plugin-transform-property-literals@6.8.1
│ ├── babel-plugin-transform-regexp-constructors@0.0.6
│ ├── babel-plugin-transform-remove-console@6.8.1
│ ├── babel-plugin-transform-remove-debugger@6.8.1
│ ├── babel-plugin-transform-remove-undefined@0.0.5
│ ├── babel-plugin-transform-simplify-comparison-operators@6.8.1
│ ├── babel-plugin-transform-undefined-to-void@6.8.0
│ └── lodash.isplainobject@4.0.6
├─┬ babel-preset-es2015@6.24.1
│ ├── babel-plugin-check-es2015-constants@6.22.0
│ ├── babel-plugin-transform-es2015-arrow-functions@6.22.0
│ ├── babel-plugin-transform-es2015-block-scoped-functions@6.22.0
│ ├── babel-plugin-transform-es2015-block-scoping@6.24.1
│ ├─┬ babel-plugin-transform-es2015-classes@6.24.1
│ │ ├── babel-helper-define-map@6.24.1
│ │ ├── babel-helper-function-name@6.24.1
│ │ ├── babel-helper-optimise-call-expression@6.24.1
│ │ └── babel-helper-replace-supers@6.24.1
│ ├── babel-plugin-transform-es2015-computed-properties@6.24.1
│ ├── babel-plugin-transform-es2015-destructuring@6.23.0
│ ├── babel-plugin-transform-es2015-duplicate-keys@6.24.1
│ ├── babel-plugin-transform-es2015-for-of@6.23.0
│ ├── babel-plugin-transform-es2015-function-name@6.24.1
│ ├── babel-plugin-transform-es2015-literals@6.22.0
│ ├── babel-plugin-transform-es2015-modules-amd@6.24.1
│ ├─┬ babel-plugin-transform-es2015-modules-commonjs@6.24.1
│ │ └── babel-plugin-transform-strict-mode@6.24.1
│ ├─┬ babel-plugin-transform-es2015-modules-systemjs@6.24.1
│ │ └── babel-helper-hoist-variables@6.24.1
│ ├── babel-plugin-transform-es2015-modules-umd@6.24.1
│ ├── babel-plugin-transform-es2015-object-super@6.24.1
│ ├─┬ babel-plugin-transform-es2015-parameters@6.24.1
│ │ ├── babel-helper-call-delegate@6.24.1
│ │ └── babel-helper-get-function-arity@6.24.1
│ ├── babel-plugin-transform-es2015-shorthand-properties@6.24.1
│ ├── babel-plugin-transform-es2015-spread@6.22.0
│ ├─┬ babel-plugin-transform-es2015-sticky-regex@6.24.1
│ │ └── babel-helper-regex@6.24.1
│ ├── babel-plugin-transform-es2015-template-literals@6.22.0
│ ├── babel-plugin-transform-es2015-typeof-symbol@6.23.0
│ ├─┬ babel-plugin-transform-es2015-unicode-regex@6.24.1
│ │ └─┬ regexpu-core@2.0.0
│ │ ├── regenerate@1.3.2
│ │ ├── regjsgen@0.2.0
│ │ └─┬ regjsparser@0.1.5
│ │ └── jsesc@0.5.0
│ └─┬ babel-plugin-transform-regenerator@6.24.1
│ └── regenerator-transform@0.9.11
├─┬ babel-preset-es2016@6.24.1
│ └─┬ babel-plugin-transform-exponentiation-operator@6.24.1
│ ├─┬ babel-helper-builder-binary-assignment-operator-visitor@6.24.1
│ │ └── babel-helper-explode-assignable-expression@6.24.1
│ └── babel-plugin-syntax-exponentiation-operator@6.13.0
├─┬ babel-preset-es2017@6.24.1
│ ├── babel-plugin-syntax-trailing-function-commas@6.22.0
│ └─┬ babel-plugin-transform-async-to-generator@6.24.1
│ ├── babel-helper-remap-async-to-generator@6.24.1
│ └── babel-plugin-syntax-async-functions@6.13.0
├─┬ chokidar@1.6.1
│ ├─┬ anymatch@1.3.0
│ │ ├── arrify@1.0.1
│ │ └─┬ micromatch@2.3.11
│ │ ├─┬ arr-diff@2.0.0
│ │ │ └── arr-flatten@1.0.3
│ │ ├── array-unique@0.2.1
│ │ ├─┬ braces@1.8.5
│ │ │ ├─┬ expand-range@1.8.2
│ │ │ │ └─┬ fill-range@2.2.3
│ │ │ │ ├── is-number@2.1.0
│ │ │ │ ├── isobject@2.1.0
│ │ │ │ ├── randomatic@1.1.6
│ │ │ │ └── repeat-string@1.6.1
│ │ │ ├── preserve@0.2.0
│ │ │ └── repeat-element@1.1.2
│ │ ├─┬ expand-brackets@0.1.5
│ │ │ └── is-posix-bracket@0.1.1
│ │ ├── extglob@0.3.2
│ │ ├── filename-regex@2.0.0
│ │ ├─┬ kind-of@3.2.0
│ │ │ └── is-buffer@1.1.5
│ │ ├─┬ normalize-path@2.1.1
│ │ │ └── remove-trailing-separator@1.0.1
│ │ ├─┬ object.omit@2.0.1
│ │ │ ├─┬ for-own@0.1.5
│ │ │ │ └── for-in@1.0.2
│ │ │ └── is-extendable@0.1.1
│ │ ├─┬ parse-glob@3.0.4
│ │ │ ├── glob-base@0.3.0
│ │ │ └── is-dotfile@1.0.2
│ │ └─┬ regex-cache@0.4.3
│ │ ├── is-equal-shallow@0.1.3
│ │ └── is-primitive@2.0.0
│ ├── async-each@1.0.1
│ ├── glob-parent@2.0.0
│ ├── inherits@2.0.3
│ ├─┬ is-binary-path@1.0.1
│ │ └── binary-extensions@1.8.0
│ ├─┬ is-glob@2.0.1
│ │ └── is-extglob@1.0.0
│ ├── path-is-absolute@1.0.1
│ └─┬ readdirp@2.1.0
│ ├─┬ readable-stream@2.2.9
│ │ ├── buffer-shims@1.0.0
│ │ ├── core-util-is@1.0.2
│ │ ├── isarray@1.0.0
│ │ ├── process-nextick-args@1.0.7
│ │ ├── string_decoder@1.0.0
│ │ └── util-deprecate@1.0.2
│ └── set-immediate-shim@1.0.1
└─┬ less@2.7.2
├─┬ errno@0.1.4
│ └── prr@0.0.0
├── graceful-fs@4.1.11
├── image-size@0.5.1
├── mime@1.3.4
├─┬ mkdirp@0.5.1
│ └── minimist@0.0.8
├─┬ promise@7.1.1
│ └── asap@2.0.5
└─┬ request@2.81.0
├── aws-sign2@0.6.0
├── aws4@1.6.0
├── caseless@0.12.0
├─┬ combined-stream@1.0.5
│ └── delayed-stream@1.0.0
├── extend@3.0.0
├── forever-agent@0.6.1
├─┬ form-data@2.1.4
│ └── asynckit@0.4.0
├─┬ har-validator@4.2.1
│ ├─┬ ajv@4.11.7
│ │ ├── co@4.6.0
│ │ └─┬ json-stable-stringify@1.0.1
│ │ └── jsonify@0.0.0
│ └── har-schema@1.0.5
├─┬ hawk@3.1.3
│ ├── boom@2.10.1
│ ├── cryptiles@2.0.5
│ ├── hoek@2.16.3
│ └── sntp@1.0.9
├─┬ http-signature@1.1.1
│ ├── assert-plus@0.2.0
│ ├─┬ jsprim@1.4.0
│ │ ├── assert-plus@1.0.0
│ │ ├── extsprintf@1.0.2
│ │ ├── json-schema@0.2.3
│ │ └── verror@1.3.6
│ └─┬ sshpk@1.13.0
│ ├── asn1@0.2.3
│ ├── assert-plus@1.0.0
│ ├── bcrypt-pbkdf@1.0.1
│ ├─┬ dashdash@1.14.1
│ │ └── assert-plus@1.0.0
│ ├── ecc-jsbn@0.1.1
│ ├─┬ getpass@0.1.7
│ │ └── assert-plus@1.0.0
│ ├── jodid25519@1.0.2
│ ├── jsbn@0.1.1
│ └── tweetnacl@0.14.5
├── is-typedarray@1.0.0
├── isstream@0.1.2
├── json-stringify-safe@5.0.1
├─┬ mime-types@2.1.15
│ └── mime-db@1.27.0
├── oauth-sign@0.8.2
├── performance-now@0.2.0
├── qs@6.4.0
├── safe-buffer@5.0.1
├── stringstream@0.0.5
├─┬ tough-cookie@2.3.2
│ └── punycode@1.4.1
├── tunnel-agent@0.6.0
└── uuid@3.0.1

npm WARN optional Skipping failed optional dependency /chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.1.1
npm WARN enoent ENOENT: no such file or directory, open ‘/home/frappe/frappe-bench/package.json’
npm WARN frappe-bench No description
npm WARN frappe-bench No repository field.
npm WARN frappe-bench No README data
npm WARN frappe-bench No license field.
Success

I was also facing same issue on Ubuntu server. Can you check browser console, is there any error when you are on ERP?