npm install error in electron

[chengdonglin]

when I install the package ,the following error:
win_delay_load_hook.cc
..\src\memory.cpp(6): fatal error C1083: Cannot open include file: 'sys/mman.h': No such file or directory [E:\electron_project\unicsystem\unic\node_modules\shmm
ap\build\shmmap.vcxproj]
gyp ERR! build error
gyp ERR! stack Error: C:\Program Files (x86)\MSBuild\14.0\bin\msbuild.exe failed with exit code: 1
gyp ERR! stack at ChildProcess.onExit (E:\nvm\v8.11.2\node_modules\npm\node_modules\node-gyp\lib\build.js:258:23)
gyp ERR! stack at emitTwo (events.js:126:13)
gyp ERR! stack at ChildProcess.emit (events.js:214:7)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:198:12)
gyp ERR! System Windows_NT 10.0.17134
gyp ERR! command "E:\nodejs\node.exe" "E:\nvm\v8.11.2\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" "rebuild"
gyp ERR! cwd E:\electron_project\unicsystem\unic\node_modules\shmmap
gyp ERR! node -v v8.11.2
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok!

[blake-regalia]

Need help implementing POSIX Shared Memory equivalent for Windows.

[blake-regalia]

blake-regalia/shmmap.js#1