add key in the v-for loop

src/components/archive/Archive.vue

@@ -121,7 +121,7 @@
                         <!--<read-more class="readMore" more-str="(More)" :text="publicationItem.projectDescription" link="#" less-str="Less" :max-chars="200"></read-more>-->
                       </span>
                       <p><span class="project-info">{{projectItemsPublicationDate}}: </span><text-highlight :queries="highlightKeyword" :caseSensitive="HighlightKeywordSensitive">{{publicationItem.publicationDate}}</text-highlight></p>
-                      <Dropdown class="dataset-wrapper" v-for="datesetItem in publicationItem.projectTags">
+                      <Dropdown class="dataset-wrapper" v-for="(datesetItem, index) in publicationItem.projectTags" :key="index">
                           <a v-if="datesetItem == 'Biological'" class="button biological-dataset-button" href="javascript:void(0)">
                              <Icon type="ios-pricetag"></Icon>
                               <text-highlight :queries="highlightKeyword" :caseSensitive="HighlightKeywordSensitive">{{datesetItem}}</text-highlight> Dataset
@@ -359,7 +359,6 @@
                               submissionType: projectsList[i].submissionType,
                               hightlightItemArray:[],
                           }
-                        
                           //console.log('projectsList[i].highlights',projectsList[i].highlights);
                           for(let j in projectsList[i].highlights){
                               let content='';

src/components/archive/Dataset.vue

@@ -376,7 +376,7 @@
                   <Card class="card" v-if="similarProjects.length>0">
                        <p slot="title"><i class="fas fa-link icon-tag"></i>Similar Studies</p>
                        <div class="list-wrapper">
-                            <Card class="similarity-card" v-for="item in similarProjects">
+                            <Card class="similarity-card" v-for="item in similarProjects" :key="item.accession">
                               <div class="similarity-title"><a @click="gotoDetails(item.accession)">{{item.title}}</a></div>
                               <div><span>{{item.submissionDate}}</span></div>
                             </Card>

src/components/documentation/MarkdownPage.vue

@@ -5,7 +5,7 @@
             <Affix :offset-top="20">
                 <div class="menu-wrapper">
                     <Menu mode="vertical" :active-name="activeName" @on-select="menuSlect">
-                        <MenuItem v-for="item in tableList" :name="item.name">
+                        <MenuItem v-for="item in tableList" :name="item.name" :key="item.name">
                             <Icon type="ios-paper"></Icon>{{item.content}}
                         </MenuItem>
                     </Menu>