錯誤資訊：

D:\project\eyeshot\eyeshot\Source>npm install
npm WARN deprecated [email protected]: This version is no longer maintained. Please upgrade to the latest version.

> [email protected] install D:\project\eyeshot\eyeshot\Source\node_modules\grpc
> node-pre-gyp install --fallback-to-build --library=static_library

node-pre-gyp ERR! Pre-built binaries not installable for [email protected] and [email protected] (node-v57 ABI, unknown) (falling back to source compile with node-gyp)
node-pre-gyp ERR! Hit error connect ETIMEDOUT 172.217.161.176:443
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.js: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:152:21)
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" "configure" "--fallback-to-build" "--library=static_library" "--module=D:\\project\\eyeshot\\eyeshot\\Source\\node_modules\\grpc\\src\\node\\extension_binary\\node-v57-win32-x64-unknown\\grpc_node.node" "--module_name=grpc_node" "--module_path=D:\\project\\eyeshot\\eyeshot\\Source\\node_modules\\grpc\\src\\node\\extension_binary\\node-v57-win32-x64-unknown"
gyp ERR! cwd D:\project\eyeshot\eyeshot\Source\node_modules\grpc
gyp ERR! node -v v8.11.3
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\node_modules\node-gyp\bin\node-gyp.js configure --fallback-to-build --library=static_library --module=D:\project\eyeshot\eyeshot\Source\node_modules\grpc\src\node\extension_binary\node-v57-win32-x64-unknown\grpc_node.node --module_name=grpc_node --module_path=D:\project\eyeshot\eyeshot\Source\node_modules\grpc\src\node\extension_binary\node-v57-win32-x64-unknown' (1)
node-pre-gyp ERR! stack     at ChildProcess.<anonymous> (D:\project\eyeshot\eyeshot\Source\node_modules\grpc\node_modules\node-pre-gyp\lib\util\compile.js:83:29)
node-pre-gyp ERR! stack     at emitTwo (events.js:126:13)
node-pre-gyp ERR! stack     at ChildProcess.emit (events.js:214:7)
node-pre-gyp ERR! stack     at maybeClose (internal/child_process.js:925:16)
node-pre-gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:209:5)
node-pre-gyp ERR! System Windows_NT 10.0.17134
node-pre-gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "D:\\project\\eyeshot\\eyeshot\\Source\\node_modules\\grpc\\node_modules\\node-pre-gyp\\bin\\node-pre-gyp" "install" "--fallback-to-build" "--library=static_library"
node-pre-gyp ERR! cwd D:\project\eyeshot\eyeshot\Source\node_modules\grpc
node-pre-gyp ERR! node -v v8.11.3
node-pre-gyp ERR! node-pre-gyp -v v0.7.0
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=D:\project\eyeshot\eyeshot\Source\node_modules\grpc\src\node\extension_binary\node-v57-win32-x64-unknown\grpc_node.node --module_name=grpc_node --module_path=D:\project\eyeshot\eyeshot\Source\node_modules\grpc\src\node\extension_binary\node-v57-win32-x64-unknown' (1)
npm WARN @agm/

[email protected] requires a peer of @angular/[email protected]^5.0.0 || ^6.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN @agm/[email protected] requires a peer of @angular/[email protected]^5.0.0 || ^6.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/

[email protected] requires a peer of @angular/[email protected]>=6.0.0 <8 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected]>=6.0.0 <8 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected]>=6.0.0 <8 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected]>=6.0.0 <8 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of [email protected]^5.5.0 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of [email protected]^6.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @ionic-native/[email protected] requires a peer of @ionic-native/[email protected]^3.6.0 || >=4.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN @ionic-native/[email protected] requires a peer of @ionic-native/[email protected]^3.6.0 || >=4.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of @angular/[email protected]^2.3.1 but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of @angular/[email protected]^2.3.1 but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of [email protected] but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of [email protected] but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: [email protected] (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for [email protected]: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

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\lenovo\AppData\Roaming\npm-cache\_logs\2018-11-05T01_38_18_123Z-debug.log

解決辦法：

執行以下命令：npm install --save @google-cloud/vision