/Javascript/Vue/Vue js Elements in iteration expect to have 'v-bind:key' directives

Vue js Elements in iteration expect to have 'v-bind:key' directives

Vue js Elements in iteration expect to have 'v-bind:key' directives

try to add v-bind:key="type" in your li
//example
  `<li class="list-group-item" v-for="type in types"  v-bind:key="type"></li>`

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