fix: vuejs#876

liyongning · Dec 24, 2021 · f47a874 · f47a874
1 parent 5f8d385
commit f47a874
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/runtimeContext.ts b/src/runtimeContext.ts
@@ -43,7 +43,8 @@ export function isPluginInstalled() {
 }
 
 export function isVueRegistered(Vue: VueConstructor) {
-  return hasOwn(Vue, PluginInstalledFlag)
+  // resolve issue: https://github.com/vuejs/composition-api/issues/876#issue-1087619365
+  return vueConstructor && hasOwn(Vue, PluginInstalledFlag)
 }
 
 export function getVueConstructor(): VueConstructor {