Here is an example https://jsfiddle.net/h6azrhhz/ Template: ``` <section> <template v-if="false"> </template> <template v-else> <div v-if="condition" class="my-class">I'm loading</div> <div v-else>I'm loaded</div> </template> </section> ``` If v-if v-else block nested into another v-if, it produces error > VM205 vue.js:427TypeError: Cannot read property 'attrs' of undefined when switching value of `condition`. As i researched, need 3 conditions to reproduce the issue 1. Class attr (or another attribute) must be presented presented in nested element 2. Nested v-else must be presented 3. v-if v-else must be nested into another v-if v-else Workaround is to use v-if="condition" and v-if="!condition" instead of v-else Thanks