### 実現したいこと

Vue.jsのX-templateのソースコードから、単一ファイルコンポーネントのソースコードに書き換えたいです。

### 発生している問題

```

    [Vue warn]: You are using the runtime-only build of Vue where the template compiler is not available. Either pre-compile the templates into render functions, or use the compiler-included build.
    
```

### 該当する元のソースコード

```

    <template>
      <div id="vue">
        <h2>These are some examples of how to do two-way bindings</h2>
        <child v-model="stuff" />
        {{ stuff }}
        <hr>
        <selector v-model="selected" /> -->
        {{ selected }}
        <hr>
        <multi-sync :first_name.sync="user.first_name" :second_name.sync="user.second_name" :third_name.sync="user.third_name" :forth_name.sync="user.forth_name" :fifth_name.sync="user.fifth_name">
          </muti-sync>
          {{ user }}
          <hr>
          <multi-field v-model="user2" />
          {{ user2 }}
        </multi-sync>
      </div>
    </template>
    
    <script>
    export default {
      components: {
        child: {
          props: ['value'],
          template: '<input v-model="interface">',
          computed: {
            interface: {
              get () {
                return this.value
              },
              set (val) {
                this.$emit('input', val)
              }
            }
          }
        },
        selector: {
          props: {
            value: {
              type: Array,
              default: [] // value for multi-select must be array, not undefined
            }
          },
          template: '<select v-model="interface" multiple><option>A</option><option>B</option><option>C</option></select>',
          computed: {
            interface: {
              get () {
                return this.value
              },
              set (val) {
                this.$emit('input', val)
              }
            }
          }
        },
        //! ここが重要！
        multiSync: {
          props: ['', '', '', '', ''],
          template: `
            <div>
              <input v-model="sync_first_name">
              <input v-model="sync_second_name">
              <input v-model="sync_third_name">
              <input v-model="sync_forth_name">
              <input v-model="sync_fifth_name">
              </div>`,
          computed: {
            sync_first_name: {
              get () {
                return this.first_name
              },
              set (val) {
                this.$emit('update:first_name', val)
              }
            },
            sync_second_name: {
              get () {
                return this.second_name
              },
              set (val) {
                this.$emit('update:second_name', val)
              }
            },
            sync_third_name: {
              get () {
                return this.third_name
              },
              set (val) {
                this.$emit('update:third_name', val)
              }
            },
            sync_forth_name: {
              get () {
                return this.forth_name
              },
              set (val) {
                this.$emit('update:forth_name', val)
              }
            },
            sync_fifth_name: {
              get () {
                return this.fifth_name
              },
              set (val) {
                this.$emit('update:fifth_name', val)
              }
            }
          }
        },
        multiField: {
          props: {
            value: {
              type: Object,
              default: {
                first_name: '',
                second_name: '',
                third_name: '',
                forth_name: '',
                fifth_name: ''
              }
            }
          },
          template: `
            <div>
              <input v-model="buffer.first_name" @input="$emit('input', buffer)">
              <input v-model="buffer.second_name" @input="$emit('input', buffer)">
                        <input v-model="buffer.third_name" @input="$emit('input', buffer)">
                        <input v-model="buffer.forth_name" @input="$emit('input', buffer)">
                        <input v-model="buffer.fifth_name" @input="$emit('input', buffer)">
            </div>`,
          data () {
            return {
              buffer: Object.assign({}, this.value)
            }
          },
          watch: {
            value: {
              handler () {
                this.buffer = Object.assign({}, this.value)
              },
              deep: true
            }
          }
        }
      },
      data () {
        return {
          stuff: '',
          selected: [],
          user: {
          },
          user2: {
          }
        }
      }
    }
    </script>
    
```

### 試したこと

[【Vue.js】コンポーネントのtemplateの書き方まとめ](https://qiita.com/seya/items/93a0055c8fdab62d584f)  
こちらの記事を参考に、以下のソースコードに書き換えた見ましたが解決に至りませんでした。

```

    <template>
      <div id="vue">
        <h2>These are some examples of how to do two-way bindings</h2>
        <child v-model="stuff" />
        {{ stuff }}
        <hr>
        <selector v-model="selected" />
        {{ selected }}
        <hr>
        <div>
          <input v-model="sync_first_name">
          <input v-model="sync_second_name">
          <input v-model="sync_third_name">
          <input v-model="sync_forth_name">
          <input v-model="sync_fifth_name">
        </div>
        <multi-sync :first_name.sync="user.first_name" :second_name.sync="user.second_name" :third_name.sync="user.third_name" :forth_name.sync="user.forth_name" :fifth_name.sync="user.fifth_name">
          </muti-sync>
          {{ user }}
          <hr>
          <div>
            <input v-model="buffer.first_name" @input="$emit('input', buffer)">
            <input v-model="buffer.second_name" @input="$emit('input', buffer)">
            <input v-model="buffer.third_name" @input="$emit('input', buffer)">
            <input v-model="buffer.forth_name" @input="$emit('input', buffer)">
            <input v-model="buffer.fifth_name" @input="$emit('input', buffer)">
          </div>
          <multi-field v-model="user2" />
          {{ user2 }}
        </multi-sync>
      </div>
    </template>
    
    <script>
    export default {
      components: {
        child: {
          props: ['value'],
          template: '<input v-model="interface">',
          computed: {
            interface: {
              get () {
                return this.value
              },
              set (val) {
                this.$emit('input', val)
              }
            }
          }
        },
        selector: {
          props: {
            value: {
              type: Array,
              default: [] // value for multi-select must be array, not undefined
            }
          },
          template: '<select v-model="interface" multiple><option>A</option><option>B</option><option>C</option></select>',
          computed: {
            interface: {
              get () {
                return this.value
              },
              set (val) {
                this.$emit('input', val)
              }
            }
          }
        },
        //! ここが重要！
        multiSync: {
          props: ['', '', '', '', ''],
          computed: {
            sync_first_name: {
              get () {
                return this.first_name
              },
              set (val) {
                this.$emit('update:first_name', val)
              }
            },
            sync_second_name: {
              get () {
                return this.second_name
              },
              set (val) {
                this.$emit('update:second_name', val)
              }
            },
            sync_third_name: {
              get () {
                return this.third_name
              },
              set (val) {
                this.$emit('update:third_name', val)
              }
            },
            sync_forth_name: {
              get () {
                return this.forth_name
              },
              set (val) {
                this.$emit('update:forth_name', val)
              }
            },
            sync_fifth_name: {
              get () {
                return this.fifth_name
              },
              set (val) {
                this.$emit('update:fifth_name', val)
              }
            }
          }
        },
        multiField: {
          props: {
            value: {
              type: Object,
              default: {
                first_name: '',
                second_name: '',
                third_name: '',
                forth_name: '',
                fifth_name: ''
              }
            }
          },
          data () {
            return {
              buffer: Object.assign({}, this.value)
            }
          },
          watch: {
            value: {
              handler () {
                this.buffer = Object.assign({}, this.value)
              },
              deep: true
            }
          }
        }
      },
      data () {
        return {
          stuff: '',
          selected: [],
          user: {
          },
          user2: {
          }
        }
      }
    }
    </script>
    
```
CC BY-SA 4.0
2020-01-29T10:29:19.170
62640
2020-01-29T10:29:19.170
37302
question
vue.js nuxt.js
Vue.jsで書かれたデータバインディングのソースコードをNuxt.jsに書き換えたい。