Error

gyp verb could not find "python"

gyp verb could not find "python". checking python launcher
gyp verb could not find "python". guessing location
gyp verb ensuring that file exists: C:\Python27\python.exe

unable to verify the first certificate

Error: unable to verify the first certificate
Downloading Python failed. Error: Error: unable to verify the first certificate
    at TLSSocket.onConnectSecure (_tls_wrap.js:1321:34)
    at TLSSocket.emit (events.js:210:5)
    at TLSSocket._finishInit (_tls_wrap.js:794:8)
    at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:608:12) {
  code: 'UNABLE_TO_VERIFY_LEAF_SIGNATURE'
npm config set strict-ssl false

# after install, turn it back
npm config set strict-ssl true

SCRIPT1046: strict 모드에서는 속성을 여러 번 정의할 수 없습니다.

SCRIPT1046: strict 모드에서는 속성을 여러 번 정의할 수 없습니다.
app.js (661,1)

                    domProps: {
                      checked:
                        mvp.dYn === "Y" ? "checked" : "",
                      value: index,
                      checked: _vm._q(_vm.checkedIdx, index)
                    },
# before
<input type="radio" name="list"
:checked="mvp.dYn === 'Y' ? 'checked' : ''"
:value="index"
v-model="checkedIdx">

# after
<input type="radio" name="list"
:checked="mvp.dYn === 'Y' ? 'checked' : ''"
:value="index">

SCRIPT1003: ':'가 필요합니다.

SCRIPT1003: ':'가 필요합니다.
chunk-vendors.js (506,1)

/***/ "./node_modules/vue-clamp/Clamp.js":
/*!*****************************************!*\
  !*** ./node_modules/vue-clamp/Clamp.js ***!
  \*****************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
eval("__webpack_require__.r(__webpack_exports__);\n/* harmony import */ var resize_detector__WEBPACK_IMPORTED_MODULE_0__ =
# vue.config.js

module.exports = {
  transpileDependencies: [
    'vue-clamp',
  ],
What Else?