diff --git a/product/gradle-plugin/src/test/integration/data/base/8.5/build.gradle.kts b/product/gradle-plugin/src/test/integration/data/base/8.5/build.gradle.kts
new file mode 100644
index 0000000000..ff78d1ee64
--- /dev/null
+++ b/product/gradle-plugin/src/test/integration/data/base/8.5/build.gradle.kts
@@ -0,0 +1,15 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    // Plugin versions are configured in settings.gradle.kts, because dynamic versions
+    // are not possible here. See
+    // https://docs.gradle.org/current/userguide/plugins.html#sec:plugin_version_management
+    //
+    // Listing the plugins in settings.gradle.kts is enough to enable the `plugins`
+    // syntax in subprojects, but the `apply` syntax requires them to be listed here as
+    // well.
+    id("com.android.application") apply false
+    id("com.android.library") apply false
+    id("com.android.dynamic-feature") apply false
+    id("org.jetbrains.kotlin.android") apply false
+    id("com.chaquo.python") apply false
+}
diff --git a/product/gradle-plugin/src/test/integration/data/base/8.5/gradle.properties b/product/gradle-plugin/src/test/integration/data/base/8.5/gradle.properties
new file mode 100644
index 0000000000..aee4471768
--- /dev/null
+++ b/product/gradle-plugin/src/test/integration/data/base/8.5/gradle.properties
@@ -0,0 +1,33 @@
+# The test script uses this to set JAVA_HOME.
+chaquopy.java.version=17
+
+agpVersion=8.5.0-rc01
+
+# These variables will be filled in by the test script.
+chaquopyRepository=
+chaquopyVersion=
+
+# Gradle Daemon will terminate itself after specified number of idle milliseconds. Default is
+# 10800000 (3 hours), but that can overload the machine when running integration tests on many
+# versions. Reduce to 30 minutes.
+org.gradle.daemon.idletimeout=1800000
+
+# Default settings generated by the new project wizard:
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. For more details, visit
+# https://developer.android.com/r/tools/gradle-multi-project-decoupled-projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
diff --git a/product/gradle-plugin/src/test/integration/data/base/8.5/gradle/wrapper/gradle-wrapper.properties b/product/gradle-plugin/src/test/integration/data/base/8.5/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000..48c0a02ca4
--- /dev/null
+++ b/product/gradle-plugin/src/test/integration/data/base/8.5/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/product/gradle-plugin/src/test/integration/data/base/8.5/settings.gradle.kts b/product/gradle-plugin/src/test/integration/data/base/8.5/settings.gradle.kts
new file mode 100644
index 0000000000..2cd5e1fc21
--- /dev/null
+++ b/product/gradle-plugin/src/test/integration/data/base/8.5/settings.gradle.kts
@@ -0,0 +1,46 @@
+pluginManagement {
+    // These are defined in gradle.properties.
+    val chaquopyRepository: String by settings
+    val chaquopyVersion: String by settings
+    val agpVersion: String by settings
+
+    repositories {
+        maven { url = uri(chaquopyRepository) }
+        google {
+            content {
+                includeGroupByRegex("com\\.android.*")
+                includeGroupByRegex("com\\.google.*")
+                includeGroupByRegex("androidx.*")
+            }
+        }
+        mavenCentral()
+        gradlePluginPortal()
+    }
+
+    plugins {
+        id("com.android.application") version agpVersion
+        id("com.android.library") version agpVersion
+        id("com.android.dynamic-feature") version agpVersion
+        id("org.jetbrains.kotlin.android") version "1.9.0"
+        id("com.chaquo.python") version chaquopyVersion
+    }
+}
+
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "My Application"
+
+for (f in rootDir.listFiles()!!) {
+    for (ext in listOf("gradle", "gradle.kts")) {
+        if (File(f, "build.$ext").exists()) {
+            include(f.name)
+            break
+        }
+    }
+}
diff --git a/product/gradle-plugin/src/test/integration/test_gradle_plugin.py b/product/gradle-plugin/src/test/integration/test_gradle_plugin.py
index 71ae618346..c41942c891 100644
--- a/product/gradle-plugin/src/test/integration/test_gradle_plugin.py
+++ b/product/gradle-plugin/src/test/integration/test_gradle_plugin.py
@@ -619,8 +619,15 @@ def test_conflict(self):
         run.rerun("PythonSrc/conflict_include", **kwargs)
 
     def conflict_error(self, variant, filename):
-        return (fr"(?s)failed for task ':app:merge{variant}PythonSources'.*"
-                fr'Encountered duplicate path "{filename}"')
+        return (
+            fr"(?s)failed for task ':app:merge{variant}PythonSources'.*" + (
+                fr'Encountered duplicate path "{filename}"'
+                if agp_version_info < (8, 5)
+
+                # No leading quote, because the message includes the full path.
+                else fr"{filename}' has already been copied there"
+            )
+        )
 
     def test_set_dirs(self):
         self.RunGradle("base", "PythonSrc/set_dirs", app=["two.py"])