Why is this happening?Who can give me the answer - npm-install

Question

installing problem
PS C:\Users\Administrator> gatsby new gatsby-site3
info Creating new site from git: https://github.com/gatsbyjs/gatsby-starter-default.git
Cloning into 'gatsby-site3'...
remote: Enumerating objects: 54, done.
remote: Counting objects: 100% (54/54), done.
remote: Compressing objects: 100% (34/34), done.
remote: Total 1578 (delta 39), reused 35 (delta 20), pack-reused 1524
Receiving objects: 100% (1578/1578), 5.71 MiB | 149.00 KiB/s, done.
Resolving deltas: 100% (954/954), done.
success Created starter directory layout
info Installing packages...
sharp#0.21.3 install C:\Users\Administrator\gatsby-site3\node_modules\sharp
(node install/libvips && node install/dll-copy && prebuild-install) || (node-gyp rebuild && node install/dll-copy)
info sharp Using cached C:\Users\Administrator\AppData\Roaming\npm-cache_libvips\libvips-8.7.0-win32-x64.tar.gz
info sharp Creating C:\Users\Administrator\gatsby-site3\node_modules\sharp\build\Release
info sharp Copying DLLs from C:\Users\Administrator\gatsby-site3\node_modules\sharp\vendor\lib to C:\Users\Administrator\gatsby-site3\node_modules\sharp\build\Release
prebuild-install WARN install No prebuilt binaries found (target=12.1.0 runtime=node arch=x64 libc= platform=win32)
C:\Users\Administrator\gatsby-site3\node_modules\sharp>if not defined npm_config_node_gyp (node "C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin\....\node_modules\node-gyp\bin\node-gyp.js" rebuild ) else (node "C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" rebuild )
Traceback (most recent call last):
File "C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\gyp\gyp_main.py", line 13, in
import gyp
File "C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\gyp\pylib\gyp__init__.py", line 7, in
import copy
File "C:\Python27\lib\copy.py", line 52, in
import weakref
File "C:\Python27\lib\weakref.py", line 14, in
from _weakref import (
ImportError: cannot import name _remove_dead_weakref
gyp ERR! configure error
gyp ERR! stack Error: gyp failed with exit code: 1
gyp ERR! stack at ChildProcess.onCpExit (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:345:16)
gyp ERR! stack at ChildProcess.emit (events.js:196:13)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:256:12)
gyp ERR! System Windows_NT 10.0.17134
gyp ERR! command "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" "rebuild"
gyp ERR! cwd C:\Users\Administrator\gatsby-site3\node_modules\sharp
gyp ERR! node -v v12.1.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.9 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.9: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! sharp#0.21.3 install: (node install/libvips && node install/dll-copy && prebuild-install) || (node-gyp rebuild && node install/dll-copy)
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the sharp#0.21.3 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Administrator\AppData\Roaming\npm-cache_logs\2019-05-01T09_34_10_497Z-debug.log
error Command failed: npm install
Error: Command failed: npm install
index.js:236
[npm]/[gatsby-cli]/[execa]/index.js:236:11
task_queues.js:89 processTicksAndRejections
internal/process/task_queues.js:89:5

Answer 1

The Gatsby packages currently are using slightly older versions of sharp. This will resolve itself when the Gatsby developers are upgrading their dependencies and ship new releases that depend upon the latest versions.
Three options I would suggest:
Downgrade to at least Node 11 (I suggest looking into Node Version Manager)
If you are using yarn use the resolutions feature in yarn in your package.json:
{
"resolutions": {
"sharp": "0.22.1"
}
}
Wait for new releases that depend on the latest versions