From 41f74fc2bbc1d6f909d38ab3e6ee4da0f322bd06 Mon Sep 17 00:00:00 2001
From: "Mr. 17" <saptakmanna100@gmail.com>
Date: Fri, 29 Sep 2023 20:32:05 +0530
Subject: [PATCH] Fix #5079: Gradle Build Failed - Task
 :utility:kaptGenerateStubsDebugKotlin FAILED (#5162)

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## Explanation
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include
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Fixes #5079

The error message indicates that there's a compatibility issue with the
Java version being used for the project. The `Unsupported class file
major version 59` suggests that the code in the model.jar (project
:model) file is compiled with a Java version higher than the one being
used by the project.

This PR explicitly set the source and target compatibility to Java 8 for
the project. This ensures that the project uses Java 8, which is
compatible with class files compiled with major version 59 (Java 15).

By making this change, we ensure that the project's Java version aligns
with the Java version used to compile the model.jar file, thus resolving
the compatibility issue and allowing the build process to proceed
without errors.

## Essential Checklist
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- [x] The PR title and explanation each start with "Fix #bugnum: " (If
this PR fixes part of an issue, prefix the title with "Fix part of
#bugnum: ...".)
- [x] Any changes to
[scripts/assets](https://github.com/oppia/oppia-android/tree/develop/scripts/assets)
files have their rationale included in the PR explanation.
- [x] The PR follows the [style
guide](https://github.com/oppia/oppia-android/wiki/Coding-style-guide).
- [x] The PR does not contain any unnecessary code changes from Android
Studio
([reference](https://github.com/oppia/oppia-android/wiki/Guidance-on-submitting-a-PR#undo-unnecessary-changes)).
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is up-to-date with "develop".
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---
 model/build.gradle | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/model/build.gradle b/model/build.gradle
index 619f1237d8b..f68c303c551 100644
--- a/model/build.gradle
+++ b/model/build.gradle
@@ -38,3 +38,8 @@ sourceSets {
     }
   }
 }
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}