Error: style attribute '@android:attr/windowExitAnimation' not found

Question

I recently upgraded to the gradle-3.0.0-alpha8 after which some styles are not resolved at compile time.
Develop envirment:

• IDE: Android studio 3.0 Bate3
• Gradle build tools : 'com.android.tools.build:gradle:3.0.0-beta3'
• Gradle :gradle-4.1-all.zip

Error info:

    Error:(94, 5) style attribute '@android:attr/windowExitAnimation' not found
    Error:(94, 5) style attribute '@android:attr/windowEnterAnimation' not found

Setting android.enableAapt2=false in gradle.properties file can solve this isuue.

But, Instant App need android.enableAapt2=true. What would i do?

Answer 1

All the problem was solved already.

Cause of the problem：

There are two modules, A_module, B_module.

B_module has a style:

<style name="my_style”> 
 <item 
  name="@android:windowEnterAnimation">@anim/anim_toast_show</item> 
 <item 
 name="@android:windowExitAnimation">@anim/anim_toast_hide</item>
</style>

If B_module compile(':A_module')
Build or Clean, report a error location in A_module->Res->values->styles:

Error:(94, 5) style attribute '@android:attr/windowExitAnimation' not found
Error:(94, 5) style attribute '@android:attr/windowEnterAnimation' not found

Solution:
Removing the "@" at the start of the item name.

<item name="@android:windowEnterAnimation">@anim/anim_toast_show</item>
<item name="@android:windowExitAnimation">@anim/anim_toast_hide</item>

to:

<item name="android:windowEnterAnimation">@anim/anim_toast_show</item>
<item name="android:windowExitAnimation">@anim/anim_toast_hide</item>