Hi Sunny,
Sorry to bother you, but i was wondering if you may be able to help.
I am trying to use the inbuilt Node server as described in you video tutorial (https://www.youtube.com/watch?v=LwD-kYlZXtw) in order to automate the gulb build while I do some customisations for my application. However I am only able to get as far as running the 'npm install' command, which is exiting with a slew of errors. I do realise that these are probably due to changes in Node package dependencies since the last release and hoped that you might take a look output below for a way forward:

$ npm install
npm WARN old lockfile
npm WARN old lockfile The package-lock.json file was created with an old version of npm,
npm WARN old lockfile so supplemental metadata must be fetched from the registry.
npm WARN old lockfile
npm WARN old lockfile This is a one-time fix-up, please be patient...
npm WARN old lockfile
npm WARN deprecated ini@1.3.5: Please update to ini >=1.3.6 to avoid a prototype pollution issue
npm WARN deprecated urix@0.1.0: Please see https://github.com/lydell/urix#deprecated
npm WARN deprecated har-validator@5.1.3: this library is no longer supported
npm WARN deprecated resolve-url@0.2.1: https://github.com/lydell/resolve-url#deprecated
npm WARN deprecated source-map-resolve@0.5.3: See https://github.com/lydell/source-map-resolve#deprecated
npm WARN deprecated source-map-url@0.4.0: See https://github.com/lydell/source-map-url#deprecated
npm WARN deprecated gulp-util@3.0.8: gulp-util is deprecated - replace it, following the guidelines at https://medium.com/gulpjs/gulp-util-ca3b1f9f9ac5
npm WARN deprecated debug@3.2.6: Debug versions >=3.2.0 <3.2.7 || >=4 <4.3.1 have a low-severity ReDos regression when used in a Node.js environment. It is recommended you upgrade to 3.2.7 or 4.3.1. (https://github.com/visionmedia/debug/issues/797)
npm WARN deprecated debug@3.2.6: Debug versions >=3.2.0 <3.2.7 || >=4 <4.3.1 have a low-severity ReDos regression when used in a Node.js environment. It is recommended you upgrade to 3.2.7 or 4.3.1. (https://github.com/visionmedia/debug/issues/797)
npm WARN deprecated fsevents@1.2.13: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
npm WARN deprecated debug@4.1.1: Debug versions >=3.2.0 <3.2.7 || >=4 <4.3.1 have a low-severity ReDos regression when used in a Node.js environment. It is recommended you upgrade to 3.2.7 or 4.3.1. (https://github.com/visionmedia/debug/issues/797)
npm WARN deprecated chokidar@2.1.8: Chokidar 2 does not receive security updates since 2019. Upgrade to chokidar 3 with 15x fewer dependencies
npm WARN deprecated uuid@3.4.0: Please upgrade to version 7 or higher. Older versions may use Math.random() in certain circumstances, which is known to be problematic. See https://v8.dev/blog/math-random for details.
npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated tar@2.2.2: This version of tar is no longer supported, and will not receive security updates. Please upgrade asap.
npm WARN deprecated popper.js@1.16.1: You can find the new Popper v2 at @popperjs/core, this package is dedicated to the legacy v1
npm WARN deprecated i18next-client@1.11.4: you can use npm install i18next from version 2.0.0
npm WARN deprecated core-js@2.6.11: core-js@<3.4 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Please, upgrade your dependencies to the actual version of core-js.
npm ERR! code 1
npm ERR! path /Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass
npm ERR! command failed
npm ERR! command sh -c node scripts/build.js
npm ERR! Building: /usr/local/bin/node /Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/node_modules/node-gyp/bin/node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
npm ERR! c++ '-DNODE_GYP_MODULE_NAME=binding' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DBUILDING_NODE_EXTENSION' -I/Users/admin/.node-gyp/16.14.0/include/node -I/Users/admin/.node-gyp/16.14.0/src -I/Users/admin/.node-gyp/16.14.0/deps/openssl/config -I/Users/admin/.node-gyp/16.14.0/deps/openssl/openssl/include -I/Users/admin/.node-gyp/16.14.0/deps/uv/include -I/Users/admin/.node-gyp/16.14.0/deps/zlib -I/Users/admin/.node-gyp/16.14.0/deps/v8/include -I../../nan -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-rtti -fno-exceptions -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/binding/src/binding.o.d.raw -c -o Release/obj.target/binding/src/binding.o ../src/binding.cpp
npm ERR! gyp info it worked if it ends with ok
npm ERR! gyp verb cli [
npm ERR! gyp verb cli '/usr/local/bin/node',
npm ERR! gyp verb cli '/Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/node_modules/node-gyp/bin/node-gyp.js',
npm ERR! gyp verb cli 'rebuild',
npm ERR! gyp verb cli '--verbose',
npm ERR! gyp verb cli '--libsass_ext=',
npm ERR! gyp verb cli '--libsass_cflags=',
npm ERR! gyp verb cli '--libsass_ldflags=',
npm ERR! gyp verb cli '--libsass_library='
npm ERR! gyp verb cli ]
npm ERR! gyp info using node-gyp@3.8.0
npm ERR! gyp info using node@16.14.0 | darwin | x64
npm ERR! gyp verb command rebuild []
npm ERR! gyp verb command clean []
npm ERR! gyp verb clean removing "build" directory
npm ERR! gyp verb command configure []
npm ERR! gyp verb check python checking for Python executable "python2" in the PATH
npm ERR! gyp verb which succeeded python2 /usr/bin/python2
npm ERR! gyp verb check python version /usr/bin/python2 -c "import sys; print "2.7.16 npm ERR! gyp verb check python version .%s.%s" % sys.version_info[:3];" returned: %j
npm ERR! gyp verb get node dir no --target version specified, falling back to host node version: 16.14.0
npm ERR! gyp verb command install [ '16.14.0' ]
npm ERR! gyp verb install input version string "16.14.0"
npm ERR! gyp verb install installing version: 16.14.0
npm ERR! gyp verb install --ensure was passed, so won't reinstall if already installed
npm ERR! gyp verb install version is already installed, need to check "installVersion"
npm ERR! gyp verb got "installVersion" 9
npm ERR! gyp verb needs "installVersion" 9
npm ERR! gyp verb install version is good
npm ERR! gyp verb get node dir target node version installed: 16.14.0
npm ERR! gyp verb build dir attempting to create "build" dir: /Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/build
npm ERR! gyp verb build dir "build" dir needed to be created? /Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/build
npm ERR! gyp verb build/config.gypi creating config file
npm ERR! gyp verb build/config.gypi writing out config file: /Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/build/config.gypi
npm ERR! (node:73186) [DEP0150] DeprecationWarning: Setting process.config is deprecated. In the future the property will be read-only.
npm ERR! (Use node --trace-deprecation ... to show where the warning was created)
npm ERR! gyp verb config.gypi checking for gypi file: /Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/config.gypi
npm ERR! gyp verb common.gypi checking for gypi file: /Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/common.gypi
npm ERR! gyp verb gyp gyp format was not specified; forcing "make"
npm ERR! gyp info spawn /usr/bin/python2
npm ERR! gyp info spawn args [
npm ERR! gyp info spawn args '/Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/node_modules/node-gyp/gyp/gyp_main.py',
npm ERR! gyp info spawn args 'binding.gyp',
npm ERR! gyp info spawn args '-f',
npm ERR! gyp info spawn args 'make',
npm ERR! gyp info spawn args '-I',
npm ERR! gyp info spawn args '/Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/build/config.gypi',
npm ERR! gyp info spawn args '-I',
npm ERR! gyp info spawn args '/Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/node_modules/node-gyp/addon.gypi',
npm ERR! gyp info spawn args '-I',
npm ERR! gyp info spawn args '/Users/admin/.node-gyp/16.14.0/include/node/common.gypi',
npm ERR! gyp info spawn args '-Dlibrary=shared_library',
npm ERR! gyp info spawn args '-Dvisibility=default',
npm ERR! gyp info spawn args '-Dnode_root_dir=/Users/admin/.node-gyp/16.14.0',
npm ERR! gyp info spawn args '-Dnode_gyp_dir=/Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/node_modules/node-gyp',
npm ERR! gyp info spawn args '-Dnode_lib_file=/Users/admin/.node-gyp/16.14.0/<(target_arch)/node.lib',
npm ERR! gyp info spawn args '-Dmodule_root_dir=/Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass',
npm ERR! gyp info spawn args '-Dnode_engine=v8',
npm ERR! gyp info spawn args '--depth=.',
npm ERR! gyp info spawn args '--no-parallel',
npm ERR! gyp info spawn args '--generator-output',
npm ERR! gyp info spawn args 'build',
npm ERR! gyp info spawn args '-Goutput_dir=.'
npm ERR! gyp info spawn args ]
npm ERR! gyp verb command build []
npm ERR! gyp verb build type Release
npm ERR! gyp verb architecture x64
npm ERR! gyp verb node dev dir /Users/admin/.node-gyp/16.14.0
npm ERR! gyp verb which succeeded for make /usr/bin/make
npm ERR! gyp info spawn make
npm ERR! gyp info spawn args [ 'V=1', 'BUILDTYPE=Release', '-C', 'build' ]
npm ERR! In file included from ../src/binding.cpp:1:
npm ERR! In file included from ../../nan/nan.h:56:
npm ERR! In file included from /Users/admin/.node-gyp/16.14.0/include/node/node.h:63:
npm ERR! In file included from /Users/admin/.node-gyp/16.14.0/include/node/v8.h:30:
npm ERR! /Users/admin/.node-gyp/16.14.0/include/node/v8-internal.h:492:38: error: no template named 'remove_cv_t' in namespace 'std'; did you mean 'remove_cv'?
npm ERR! !std::is_same<Data, std::remove_cv_t<T>>::value>:😛erform(data);
npm ERR! ^~~~~~
npm ERR! remove_cv
npm ERR! /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/type_traits:697:50: note: 'remove_cv' declared here
npm ERR! template <class _Tp> struct LIBCPP_TEMPLATE_VIS remove_cv
npm ERR! ^
npm ERR! 1 error generated.
npm ERR! make: *** [Release/obj.target/binding/src/binding.o] Error 1
npm ERR! gyp ERR! build error
npm ERR! gyp ERR! stack Error: make failed with exit code: 2
npm ERR! gyp ERR! stack at ChildProcess.onExit (/Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/node_modules/node-gyp/lib/build.js:262:23)
npm ERR! gyp ERR! stack at ChildProcess.emit (node:events:520:28)
npm ERR! gyp ERR! stack at Process.ChildProcess.handle.onexit (node:internal/child_process:291:12)
npm ERR! gyp ERR! System Darwin 19.6.0
npm ERR! gyp ERR! command "/usr/local/bin/node" "/Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
npm ERR! gyp ERR! cwd /Volumes/Macintosh Data/work/smartadmin/smartadmin-package-4.5.1/smartadmin-html-full/node_modules/node-sass
npm ERR! gyp ERR! node -v v16.14.0
npm ERR! gyp ERR! node-gyp -v v3.8.0
npm ERR! gyp ERR! not ok
npm ERR! Build failed with error code: 1

npm ERR! A complete log of this run can be found in:
npm ERR! /Users/admin/.npm/_logs/2022-03-09T10_29_45_853Z-debug-0.log

Once again, apologies if my own stupidity is the cause of the issue, and thanks for any help you are able to give.

Regards,
Fin