Error when using Addressables and AWS Mobile SDK for Unity

When using the AWSSDK library.Core.dll from this example https://docs.aws.amazon.com/mobile/sdkforunity/developerguide/what-is-unity-plugin.html

And then add the package com.unity.addressables through the package Manager.

Then the following error occurs

Library\PackageCache\com.unity.scriptablebuildpipeline@1.5.0-preview\Editor\CacheServer\Client.cs(440,35): error CS0433: The type 'InvalidDataException' exists in both 'AWSSDK.Core, Version=3.3.0.0, Culture=neutral, PublicKeyToken=null' and 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'

And the question is how to fix it

 

It looks to me like they have not updated the SDK since Unity migrated to a newer .NET standard. InvalidDataException was missing from Unity's .NET assemblies but is now not. You need to get rid of the implementation of InvalidDataException that the AWS SDK includes. In fact, you need to get rid of everything in here:

https://github.com/aws/aws-sdk-net/tree/master/sdk/src/Core/Amazon.MissingTypes

You may need to check through the GitHub repo of the SDK and see if there are any pull requests or active issues for this.

 

I would highly recommend NOT using the AWS Mobile SDK for Unity. Especially if you plan on deploying to Android as the SDK does not support Android arm64 builds (which is now required by Google). Ref. https://github.com/aws/aws-sdk-net/issues/1371#issuecomment-522781886

 

Hello, have you found a fix for this? Thanks.

 

The Amazon AWS SDK team does not recommend using the Unity Mobile SDK as they are not updating it any further. They now recommend you use the AWS SDK .NET Standard 2.0 for Unity. Ref. https://github.com/aws/aws-sdk-net/issues/1371#issuecomment-541886433

 

Thank you, I'll give it a go. I didn't realised that the 2.0 meant that it's a more up-to-date version, I thought it meant .NET 2.0 runtime.

 

Any luck with this? I dropped in the non-unity DLLS for .NET2.0 and it's missing seemingly critical stuff

 

Sorry, didn't see this before now. I've got it working by adding a link.xml file into the Assets folder with the AWS dlls listed.

 

Any update about this I am still getting the error?

I am using 2019.3.9f1 and AWS SDK for DOT Net Unity package: aws-unity-sdk-v3-preview (AWSSDK.Lambda.3.1.2.5.unitypackage, AWSSDK.CognitoSync.3.1.0.5.unitypackage, AWSSDK.IdentityManagement.3.1.3.2.unitypackage).

 

You need to use the .NET Standard 2.0 version of the AWS SDK for .NET here: https://github.com/aws/aws-sdk-net/issues/1371#issuecomment-541886433

Additional reference here: https://github.com/aws/aws-sdk-net/issues/1262#issuecomment-535277796

I can confirm this works as I am publishing a Unity 2018.4 LTS project with this AWS SDK (DynamoDB, Lambda, S3) and Addressables without any issues (both Android and iOS app stores).

 

Hello
Thanks for Sharing this Information
AWS course in Pune