运行npm install时出现以下错误。有什么需要在nodejs或其他问题做。每当我使用npm，例如npm install -g firebase-tools，npm install gulp时，我都会得到下面的错误。

node-pre-gyp ERR! Tried to download(403): https://storage.googleapis.com/grpc-precompiled-binaries/node/grpc/v1.7.3/node-v64-wi
    n32-x64-unknown.tar.gz
    node-pre-gyp ERR! Pre-built binaries not found for [email protected] and [email protected] (node-v64 ABI, unknown) (falling back to source c
    ompile with node-gyp)
    gyp ERR! configure error
    gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
    gyp ERR! stack     at PythonFinder.failNoPython (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.j
    s:483:19)
    gyp ERR! stack     at PythonFinder.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js
    :508:16)
    gyp ERR! stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\graceful-fs\polyfills.js:284:29
    gyp ERR! stack     at FSReqWrap.oncomplete (fs.js:149:21)
    gyp ERR! System Windows_NT 6.1.7601
    gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\node-gyp\\b
    in\\node-gyp.js" "configure" "--fallback-to-build" "--library=static_library" "--module=C:\\DEV\\Google Home\\Creating Sample\\
    TestSet-up\\functions\\node_modules\\dialogflow\\node_modules\\grpc\\src\\node\\extension_binary\\node-v64-win32-x64-unknown\\g
    rpc_node.node" "--module_name=grpc_node" "--module_path=C:\\DEV\\Google Home\\Creating Sample\\TestSet-up\\functions\\node_modu
    les\\dialogflow\\node_modules\\grpc\\src\\node\\extension_binary\\node-v64-win32-x64-unknown"
    gyp ERR! cwd C:\DEV\Google Home\Creating Sample\TestSet-up\functions\node_modules\dialogflow\node_modules\grpc
    gyp ERR! node -v v10.0.0
    gyp ERR! node-gyp -v v3.6.2
    gyp ERR! not ok
    node-pre-gyp ERR! build error
    node-pre-gyp ERR! stack Error: Failed to execute 'C:\Program Files\nodejs\node.exe C:\Program Files\nodejs\node_modules\npm\nod
    e_modules\node-gyp\bin\node-gyp.js configure --fallback-to-build --library=static_library --module=C:\DEV\Google Home\Creating
    Sample\TestSet-up\functions\node_modules\dialogflow\node_modules\grpc\src\node\extension_binary\node-v64-win32-x64-unknown\grpc
    _node.node --module_name=grpc_node --module_path=C:\DEV\Google Home\Creating Sample\TestSet-up\functions\node_modules\dialogflo
    w\node_modules\grpc\src\node\extension_binary\node-v64-win32-x64-unknown' (1)
    node-pre-gyp ERR! stack     at ChildProcess.<anonymous> (C:\DEV\Google Home\Creating Sample\TestSet-up\functions\node_modules\d
    ialogflow\node_modules\grpc\node_modules\node-pre-gyp\lib\util\compile.js:83:29)
    node-pre-gyp ERR! stack     at ChildProcess.emit (events.js:182:13)
    node-pre-gyp ERR! stack     at maybeClose (internal/child_process.js:947:16)
    node-pre-gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:236:5)
    node-pre-gyp ERR! System Windows_NT 6.1.7601
    node-pre-gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\DEV\\Google Home\\Creating Sample\\TestSet-up\\functions\\
    node_modules\\dialogflow\\node_modules\\grpc\\node_modules\\node-pre-gyp\\bin\\node-pre-gyp" "install" "--fallback-to-build" "-
    -library=static_library"
    node-pre-gyp ERR! cwd C:\DEV\Google Home\Creating Sample\TestSet-up\functions\node_modules\dialogflow\node_modules\grpc
    node-pre-gyp ERR! node -v v10.0.0
    node-pre-gyp ERR! node-pre-gyp -v v0.6.39
    node-pre-gyp ERR! not ok
    Failed to execute 'C:\Program Files\nodejs\node.exe C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\bin\node-gyp
    .js configure --fallback-to-build --library=static_library --module=C:\DEV\Google Home\Creating Sample\TestSet-up\functions\nod
    e_modules\dialogflow\node_modules\grpc\src\node\extension_binary\node-v64-win32-x64-unknown\grpc_node.node --module_name=grpc_n
    ode --module_path=C:\DEV\Google Home\Creating Sample\TestSet-up\functions\node_modules\dialogflow\node_modules\grpc\src\node\ex
    tension_binary\node-v64-win32-x64-unknown' (1)
    npm WARN The package gulp is included as both a dev and production dependency.

    npm ERR! code ELIFECYCLE
    npm ERR! errno 1
    npm ERR! [email protected] install: `node-pre-gyp install --fallback-to-build --library=static_library`
    npm ERR! Exit status 1
    npm ERR!
    npm ERR! Failed at the [email protected] 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\selvamt\AppData\Roaming\npm-cache\_logs\2018-07-17T11_11_19_375Z-debug.log