我正在嘗試將我的 Angular 應用程式從v4.4.6 遷移到 v14.0.4。我已成功執行以下步驟：
% rm -rf node_modules
% npm update --loglevel verbose
% npm install --loglevel verbose
% nvm install 8.9.4
% nvm use 8.9.4
% nvm alias default 8.9.4
% npm uninstall -g @angular/cli
% npm install -g @angular/cli@6.2.9 --loglevel verbose
% npm install --save-dev @angular/cli@6.2.9 --loglevel verbose
但是，一旦我嘗試運行以下命令列，就會出現此錯誤：
% NG_DISABLE_VERSION_CHECK=1 npx @angular/cli@6.2.9 update @angular/cli@6.2.9 --loglevel verbose
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
Traceback (most recent call last):
File "/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/gyp/gyp_main.py", line 16, in <module>
sys.exit(gyp.script_main())
File "/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/__init__.py", line 545, in script_main
return main(sys.argv[1:])
File "/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/__init__.py", line 538, in main
return gyp_main(args)
File "/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/__init__.py", line 523, in gyp_main
generator.GenerateOutput(flat_list, targets, data, params)
File "/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/generator/make.py", line 2170, in GenerateOutput
part_of_all=qualified_target in needed_targets)
File "/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/generator/make.py", line 817, in Write
mac_bundle_deps, extra_outputs, part_of_all)
File "/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/generator/make.py", line 1453, in WriteTarget
lambda p: Sourceify(self.Absolutify(p)))
File "/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/xcode_emulation.py", line 809, in GetLdflags
archs = self.GetActiveArchs(self.configname)
File "/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/xcode_emulation.py", line 420, in GetActiveArchs
xcode_archs_default = GetXcodeArchsDefault()
File "/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/xcode_emulation.py", line 118, in GetXcodeArchsDefault
xcode_version, _ = XcodeVersion()
File "/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/xcode_emulation.py", line 1265, in XcodeVersion
version = re.match(r'(\d\.\d\.?\d*)', version).groups()[0]
AttributeError: 'NoneType' object has no attribute 'groups'
gyp ERR! configure error
gyp ERR! stack Error: `gyp` failed with exit code: 1
gyp ERR! stack at ChildProcess.onCpExit (/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:336:16)
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 Darwin 21.3.0
gyp ERR! command "/Users/userx/.nvm/versions/node/v8.9.4/bin/node" "/Users/userx/.nvm/versions/node/v8.9.4/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /Users/userx/.npm/_npx/22018/lib/node_modules/@angular/cli/node_modules/fsevents
gyp ERR! node -v v8.9.4
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
我仔細檢查了 xCode，發現它已經安裝在我的 Mac 上。
資訊：
% ng --version
_ _ ____ _ ___
/ \ _ __ __ _ _ _| | __ _ _ __ / ___| | |_ _|
/ △ \ | '_ \ / _` | | | | |/ _` | '__| | | | | | |
/ ___ \| | | | (_| | |_| | | (_| | | | |___| |___ | |
/_/ \_\_| |_|\__, |\__,_|_|\__,_|_| \____|_____|___|
|___/
Angular CLI: 6.2.9
Node: 8.9.4
OS: darwin x64
Angular: 4.4.7
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router, tsc-wrapped
Package Version
------------------------------------------------------
@angular-devkit/architect 0.8.9
@angular-devkit/core 0.8.9
@angular-devkit/schematics 0.8.9
@angular/cli 6.2.9
@schematics/angular 0.8.9
@schematics/update 0.8.9
rxjs 5.5.12
typescript 2.4.2
請知道如何解決此問題。
uj5u.com熱心網友回復：
終于找到了我的問題的解決方案：
sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
資源
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