当我要创建项目时，会发生此错误。
C：\ Users \ Tareque \ Desktop \ ionic apps \ app \ node_modules \ node-sass \ build \ src \ libsass.vcxproj（20,3）：错误 MSB4019：找不到导入的项目“C：\ Microsoft.Cpp.Default.props”。确认路径中的 声明是正确的，并且该文件存在于磁盘上。
PS C:\Users\Tareque\Desktop\ionic apps> ionic start app blank
√ Creating directory .\app - done!
√ Downloading and extracting blank starter - done!
? Would you like to integrate your new app with Cordova to target native iOS and Android? Yes
√ Personalizing ionic.config.json and package.json - done!
> ionic integrations enable cordova --quiet
√ Downloading integration cordova - done!
√ Copying integrations files to project - done!
[OK] Added cordova integration!
Installing dependencies may take several minutes.
* IONIC DEVAPP *
Speed up development with the Ionic DevApp, our fast, on-device testing mobile app
- Test on iOS and Android without Native SDKs
- LiveReload for instant style and JS updates
️--> Install DevApp <--
> npm i
× Running command - failed!
[ERROR] An error occurred while running npm i (exit code 1):
> node-sass@4.7.2 install C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass
> node scripts/install.js
Downloading binary from https://github.com/sass/node-sass/releases/download/v4.7.2/win32-x64-64_binding.node
Cannot download "https://github.com/sass/node-sass/releases/download/v4.7.2/win32-x64-64_binding.node":
HTTP error 404 Not Found
Hint: If github.com is not accessible in your location
try setting a proxy via HTTP_PROXY, e.g.
export HTTP_PROXY=http://example.com:1234
or configure npm proxy via
npm config set proxy http://example.com:8080
> uglifyjs-webpack-plugin@0.4.6 postinstall C:\Users\Tareque\Desktop\ionic
apps\app\node_modules\uglifyjs-webpack-plugin
> node lib/post_install.js
> node-sass@4.7.2 postinstall C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass
> node scripts/build.js
Building: C:\Program Files\nodejs\node.exe C:\Users\Tareque\Desktop\ionic
apps\app\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags=
--libsass_ldflags= --libsass_library=
gyp info it worked if it ends with ok
gyp verb cli [ 'C:\\Program Files\\nodejs\\node.exe',
gyp verb cli 'C:\\Users\\Tareque\\Desktop\\ionic apps\\app\\node_modules\\node-gyp\\bin\\node-gyp.js',
gyp verb cli 'rebuild',
gyp verb cli '--verbose',
gyp verb cli '--libsass_ext=',
gyp verb cli '--libsass_cflags=',
gyp verb cli '--libsass_ldflags=',
gyp verb cli '--libsass_library=' ]
gyp info using node-gyp@3.6.2
gyp info using node@10.0.0 | win32 | x64
gyp verb command rebuild []
gyp verb command clean []
gyp verb clean removing "build" directory
gyp verb command configure []
gyp verb check python checking for Python executable
"C:\Users\Tareque\AppData\Local\Programs\Python\Python36-32\python.exe" in the PATH
gyp verb `which` succeeded C:\Users\Tareque\AppData\Local\Programs\Python\Python36-32\python.exe
C:\Users\Tareque\AppData\Local\Programs\Python\Python36-32\python.exe
gyp verb check python version `C:\Users\Tareque\AppData\Local\Programs\Python\Python36-32\python.exe -c "import
platform; print(platform.python_version());"` returned: "3.6.4\r\n"
gyp verb could not find "C:\Users\Tareque\AppData\Local\Programs\Python\Python36-32\python.exe". checking python
launcher
gyp verb check python launcher python executable found: "C:\\Python27\\python.exe"
gyp verb check python version `C:\Python27\python.exe -c "import platform; print(platform.python_version());"`
returned: "2.7.15\r\n"
gyp verb get node dir no --target version specified, falling back to host node version: 10.0.0
gyp verb command install [ '10.0.0' ]
gyp verb install input version string "10.0.0"
gyp verb install installing version: 10.0.0
gyp verb install --ensure was passed, so won't reinstall if already installed
gyp verb install version is already installed, need to check "installVersion"
gyp verb got "installVersion" 9
gyp verb needs "installVersion" 9
gyp verb install version is good
gyp verb get node dir target node version installed: 10.0.0
gyp verb build dir attempting to create "build" dir: C:\Users\Tareque\Desktop\ionic
apps\app\node_modules\node-sass\build
gyp verb build dir "build" dir needed to be created? C:\Users\Tareque\Desktop\ionic
apps\app\node_modules\node-sass\build
gyp verb build/config.gypi creating config file
gyp verb build/config.gypi writing out config file: C:\Users\Tareque\Desktop\ionic
apps\app\node_modules\node-sass\build\config.gypi
gyp verb config.gypi checking for gypi file: C:\Users\Tareque\Desktop\ionic
apps\app\node_modules\node-sass\config.gypi
gyp verb common.gypi checking for gypi file: C:\Users\Tareque\Desktop\ionic
apps\app\node_modules\node-sass\common.gypi
gyp verb gyp gyp format was not specified; forcing "msvs"
gyp info spawn C:\Python27\python.exe
gyp info spawn args [ 'C:\\Users\\Tareque\\Desktop\\ionic apps\\app\\node_modules\\node-gyp\\gyp\\gyp_main.py',
gyp info spawn args 'binding.gyp',
gyp info spawn args '-f',
gyp info spawn args 'msvs',
gyp info spawn args '-G',
gyp info spawn args 'msvs_version=2013',
gyp info spawn args '-I',
gyp info spawn args 'C:\\Users\\Tareque\\Desktop\\ionic
apps\\app\\node_modules\\node-sass\\build\\config.gypi',
gyp info spawn args '-I',
gyp info spawn args 'C:\\Users\\Tareque\\Desktop\\ionic apps\\app\\node_modules\\node-gyp\\addon.gypi',
gyp info spawn args '-I',
gyp info spawn args 'C:\\Users\\Tareque\\.node-gyp\\10.0.0\\include\\node\\common.gypi',
gyp info spawn args '-Dlibrary=shared_library',
gyp info spawn args '-Dvisibility=default',
gyp info spawn args '-Dnode_root_dir=C:\\Users\\Tareque\\.node-gyp\\10.0.0',
gyp info spawn args '-Dnode_gyp_dir=C:\\Users\\Tareque\\Desktop\\ionic apps\\app\\node_modules\\node-gyp',
gyp info spawn args '-Dnode_lib_file=C:\\Users\\Tareque\\.node-gyp\\10.0.0\\<(target_arch)\\node.lib',
gyp info spawn args '-Dmodule_root_dir=C:\\Users\\Tareque\\Desktop\\ionic apps\\app\\node_modules\\node-sass', gyp info spawn args '-Dnode_engine=v8',
gyp info spawn args '--depth=.',
gyp info spawn args '--no-parallel',
gyp info spawn args '--generator-output',
gyp info spawn args 'C:\\Users\\Tareque\\Desktop\\ionic apps\\app\\node_modules\\node-sass\\build',
gyp info spawn args '-Goutput_dir=.' ]
gyp verb command build []
gyp verb build type Release
gyp verb architecture x64
gyp verb node dev dir C:\Users\Tareque\.node-gyp\10.0.0
gyp verb found first Solution file build/binding.sln
gyp verb could not find "msbuild.exe" in PATH - finding location in registry
gyp info spawn C:\Program Files (x86)\MSBuild\14.0\bin\msbuild.exe
gyp info spawn args [ 'build/binding.sln',
gyp info spawn args '/nologo',
gyp info spawn args '/p:Configuration=Release;Platform=x64' ]
Building the projects in this solution one at a time. To enable parallel build, please add the "/m" switch.
Build started 5/8/2018 2:52:56 PM.
Project "C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass\build\binding.sln" on node 1 (default
targets).
ValidateSolutionConfiguration:
Building solution configuration "Release|x64".
Project "C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass\build\binding.sln" (1) is building
"C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass\build\binding.vcxproj.metaproj" (2) on node 1
(default targets).
Project "C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass\build\binding.vcxproj.metaproj" (2) is
building "C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass\build\src\libsass.vcxproj" (3) on node
1 (default targets).
C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass\build\src\libsass.vcxproj(20,3): error MSB4019:
The imported project "C:\Microsoft.Cpp.Default.props" was not found. Confirm that the path in the <Import>
declaration is correct, and that the file exists on disk.
Done Building Project "C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass\build\src\libsass.vcxproj"
(default targets) -- FAILED.
Done Building Project "C:\Users\Tareque\Desktop\ionic
apps\app\node_modules\node-sass\build\binding.vcxproj.metaproj" (default targets) -- FAILED.
Done Building Project "C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass\build\binding.sln"
(default targets) -- FAILED.
Build FAILED.
"C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass\build\binding.sln" (default target) (1) ->
"C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass\build\binding.vcxproj.metaproj" (default target)
(2) ->
"C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass\build\src\libsass.vcxproj" (default target) (3)
->
C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass\build\src\libsass.vcxproj(20,3): error
MSB4019: The imported project "C:\Microsoft.Cpp.Default.props" was not found. Confirm that the path in the
<Import> declaration is correct, and that the file exists on disk.
0 Warning(s)
1 Error(s)
Time Elapsed 00:00:00.63
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 (C:\Users\Tareque\Desktop\ionic
apps\app\node_modules\node-gyp\lib\build.js:258:23)
gyp ERR! stack at ChildProcess.emit (events.js:182:13)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:225:12)
gyp ERR! System Windows_NT 10.0.16299
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\Tareque\\Desktop\\ionic
apps\\app\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags="
"--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd C:\Users\Tareque\Desktop\ionic apps\app\node_modules\node-sass
gyp ERR! node -v v10.0.0
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
Build failed with error code: 1
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.3 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.3: wanted
{"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! node-sass@4.7.2 postinstall: `node scripts/build.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the node-sass@4.7.2 postinstall 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\Tareque\AppData\Roaming\npm-cache\_logs\2018-05-08T08_52_57_968Z-debug.log
答案 0 :(得分：0)
检查您的环境变量并正确选择路径。
答案 1 :(得分：0)
在错误开始发生后，我已多次更改环境变量。然后我安装python并设置环境变量并安装visual studio来解决windows build错误。现在工作正常......