Paste your log here, between the backticks. It can be:
  - npm --verbose output,
  - or contents of npm-debug.log,
  - or output of node-gyp rebuild --verbose.
Include the command you were trying to run.

Please see:

error C:\Users\Mac\node_modules\fibers: Command failed.
Exit code: 1
Command: node build.js || nodejs build.js
Arguments:
Directory: C:\Users\Mac\node_modules\fibers
Output:
gyp info it worked if it ends with ok
gyp info using [email protected]
gyp info using [email protected] | win32 | x64
gyp info find Python using Python version 3.8.5 found at "C:\Python38\python.exe"
gyp ERR! find VS
gyp ERR! find VS msvs_version was set from command line or npm config
gyp ERR! find VS - looking for Visual Studio version 2019
gyp ERR! find VS VCINSTALLDIR not set, not running in VS Command Prompt
gyp ERR! find VS checking VS2019 (16.8.30524.135) found at:
gyp ERR! find VS "C:\Program Files (x86)\Microsoft Visual Studio\2019\Preview"
gyp ERR! find VS - found "Visual Studio C++ core features"
gyp ERR! find VS - found VC++ toolset: v142
gyp ERR! find VS - missing any Windows SDK
gyp ERR! find VS could not find a version of Visual Studio 2017 or newer to use
gyp ERR! find VS looking for Visual Studio 2015
gyp ERR! find VS - not found
gyp ERR! find VS not looking for VS2013 as it is only supported up to Node.js 8
gyp ERR! find VS
gyp ERR! find VS valid versions for msvs_version:
gyp ERR! find VS
gyp ERR! find VS **************************************************************
gyp ERR! find VS You need to install the latest version of Visual Studio
gyp ERR! find VS including the "Desktop development with C++" workload.
gyp ERR! find VS For more information consult the documentation at:
gyp ERR! find VS https://github.com/nodejs/node-gyp#on-windows
gyp ERR! find VS **************************************************************
gyp ERR! find VS
gyp ERR! configure error
gyp ERR! stack Error: Could not find any Visual Studio installation to use
gyp ERR! stack     at VisualStudioFinder.fail (C:\Users\Mac\node_modules\node-gyp\lib\find-visualstudio.js:121:47)
gyp ERR! stack     at C:\Users\Mac\node_modules\node-gyp\lib\find-visualstudio.js:74:16
gyp ERR! stack     at VisualStudioFinder.findVisualStudio2013 (C:\Users\Mac\node_modules\node-gyp\lib\find-visualstudio.js:351:14)
gyp ERR! stack     at C:\Users\Mac\node_modules\node-gyp\lib\find-visualstudio.js:70:14
gyp ERR! stack     at C:\Users\Mac\node_modules\node-gyp\lib\find-visualstudio.js:372:16
gyp ERR! stack     at C:\Users\Mac\node_modules\node-gyp\lib\util.js:54:7
gyp ERR! stack     at C:\Users\Mac\node_modules\node-gyp\lib\util.js:33:16
gyp ERR! stack     at ChildProcess.exithandler (child_process.js:315:5)
gyp ERR! stack     at ChildProcess.emit (events.js:314:20)
gyp ERR! stack     at maybeClose (internal/child_process.js:1047:16)
gyp ERR! System Windows_NT 10.0.20226
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\Mac\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--release"
gyp ERR! cwd C:\Users\Mac\node_modules\fibers
gyp ERR! node -v v14.13.0
gyp ERR! node-gyp -v v7.1.0
gyp ERR! not ok
node-gyp exited with code: 1
Please make sure you are using a supported platform and node version. If you
would like to compile fibers on this machine please make sure you have setup your
build environment--
Windows + OS X instructions here: https://github.com/nodejs/node-gyp
Ubuntu users please run: `sudo apt-get install g++ build-essential`
RHEL users please run: `yum install gcc-c++` and `yum groupinstall 'Development Tools'