npm install

답변 감사합니다. 하지만 위 코드를 실행해도 > windows-build-tools@5.1.0 postinstall C:\Users\LG\AppData\Roaming\npm\node_modules\windows-build-tools > node ./dist/index.js Downloading python-2.7.15.amd64.msi [> ] 0.0% (0 B/s) Downloaded python-2.7.15.amd64.msi. Saved to C:\Users\LG\.windows-build-tools\python-2.7.15.amd64.msi. Downloading vs_BuildTools.exe [> ] 0.0% (0 B/s) Downloaded vs_BuildTools.exe. Saved to C:\Users\LG\.windows-build-tools\vs_BuildTools.exe. Starting installation... events.js:174 throw er; // Unhandled 'error' event ^ Error: spawn powershell.exe ENOENT at Process.ChildProcess._handle.onexit (internal/child_process.js:240:19) at onErrorNT (internal/child_process.js:415:16) at process._tickCallback (internal/process/next_tick.js:63:19) Emitted 'error' event at: at Process.ChildProcess._handle.onexit (internal/child_process.js:246:12) at onErrorNT (internal/child_process.js:415:16) at process._tickCallback (internal/process/next_tick.js:63:19) npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! windows-build-tools@5.1.0 postinstall: `node ./dist/index.js` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the windows-build-tools@5.1.0 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\LG\AppData\Roaming\npm-cache\_logs\2019-06-19T05_50_44_289Z-debug.log 또 오류가 납니다..어떻게 해야할까요

truffle deploy --network klaytn

강의파일 복붙했는데도 안되네요...