Скачать или смотреть How to Fix Unity3D 2021 Crashes When Building AssetBundles

Are you facing crashes in Unity3D 2021 while building AssetBundles? This guide explores the common cause of this issue and offers practical solutions to prevent crashes.
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How to Fix Unity3D 2021 Crashes When Building AssetBundles: A Comprehensive Guide

If you have recently migrated your project from Unity 2019 to Unity 2021 and are encountering crashes when trying to build AssetBundles, you are not alone. This problem has plagued many developers who updated to the newer version. In this guide, we will dive into the core of the problem and provide you with a step-by-step solution so that you can get back to developing your game smoothly.

Understanding the Problem

When trying to create AssetBundles using the BuildPipeline.BuildAssetBundles() method in Unity 2021, users have reported unexpected crashes. The crash doesn’t occur in its predecessor, Unity 2019.3, which raises questions about the changes introduced in the newer version and what could be going wrong.

Symptoms of the Issue

Unity crashes during the AssetBundles building process.

No crash occurs while using Unity 2019.

The building process is initiated by passing a list of AssetBundle objects.

Crash Logs

The crash logs typically show a series of stack frames indicating that the issue arises at the BuildAssetBundlesInternal method. Here's a snapshot of what you might see in the logs:

[[See Video to Reveal this Text or Code Snippet]]

Identifying the Root Cause

After a thorough investigation, it was discovered that the crash occurs primarily due to the list of AssetBundles containing paths to non-existent files. What worked seamlessly in Unity 2019 no longer holds true in version 2021, resulting in the program crashing during the build process.

Why Does This Happen?

Unity 2021 has become stricter with project structures and validation. If any paths in the AssetBundles list are broken or lead to non-existent files, it triggers an error that results in a crash. Unity 2019 was more forgiving, which could explain why the issue didn't surface in that version.

Solution: Fixing the Issue

To resolve the crashing issue when building AssetBundles in Unity 2021, follow these steps:

1. Verify Asset Paths

Check Your AssetBundle List: Confirm that all paths in the assetBundlesBuilds list are valid and point to existing files.

Error Logging: Consider adding error logging to identify broken paths while building AssetBundles.

2. Update Your Code

Make sure to validate the file paths programmatically before invoking the BuildPipeline.BuildAssetBundles method:

[[See Video to Reveal this Text or Code Snippet]]

3. Clean and Rebuild

Clean Your Project: Clear any temporary files or cached data from your previous builds.

Rebuild Your Assets: Attempt to rebuild your AssetBundles after addressing the invalid paths.

Conclusion

Transitioning from Unity 2019 to Unity 2021 can present unexpected challenges, such as crashes during the AssetBundles building process. By understanding that the root issue stems from invalid paths and addressing these with proper validation in your code, you can prevent crashes and streamline your development process.

If you follow the guidelines mentioned above, you should be able to build your AssetBundles without encountering crashes. Remember, always verify your files and project structure after migrating to a new Unity version to ensure compatibility and smooth performance.

Happy Game Developing!