# SDK FAQ

**本文提供 Air SDK 常见问题**

开发中遇到的许多问题，由兼容性引起。

在指定的硬件设备上，建议先安装 SDK 中已打包好的 apk 进行体验，以确认硬件状态正常。

然后，选择支持的 Unity 版本，加载 SDK 中的 Sample 工程，按照文档所述步骤进行设置，打包运行应用，以确认软件开发环境正常。

最后，可以开始开发自己的应用了。

#### 常见问题（持续更新中）

**1. 碰到 mainTemplate.gradle file is using the old apptOptions noCompress property definition which does not include types defined by unityStreamingAssets constant. 问题。**

答: 请在 Unity mainTemplate.gradle 文件下添加如下代码:

> noCompress = \['.ress', '.resource', '.obb'] + unityStreamingAssets.tokenize(', ')

**2. Unity 出现错误：**

> What went wrong:\
> \> Could not get unKnown property 'unityStreamingAssets' for object of type com.android.build.gradle.internal.dsl.AaptOptions.

答：打开 Build Setting，定位到 player->publishing settings->Build->选中 Custom Gradle Properties Template. 打开 Assets->Plugins->Android->gradleTemplate.properties 如果没有 unityStreamingAssets=这一行，添加：

> unityStreamingAssets=.unity3d, google-services-desktop.json, google-services.json, GoogleService-Info.plist

**3. APK 安装到手机的过程中需要进行安装安全性确认，或 ABI 确认问题。**

答：越来越多的 Android 设备开始使用 Android 11，并且其 ABI 通常遵循 arm64-v8a，兼容 armeabi-v7a, 通常建议在 Player settings->Other settings->Configuration->Target Architectures 选项下的 ARMv7 和 ARM64 两个选项同时选中。<br>

**4. 导入 sample 之后，射线点击控件无效？**

答：需要 reimport 一下 DLL， 路径在 ffalcon sdk->Runtime->Plugins->Android->UnityXRSDKCore.dll

![](https://testopen.rayneo.cn/media/058be01d-f519-491c-b9b6-6f4ce34a84d3.png)<br>

**5. 华为 mate 10 ,20 等手机,启动应用没有开启 unity 窗口,眼镜还停留在 Launcher 界面?**

答:这是因为华为的自动分辨率导致的,需要进入 设置->显示和亮度->屏幕分辨率->高. 即可![](https://testopen.rayneo.cn/media/115344_com.android.settings.jpg)

**6. 打包出错或者无法出包,unity 编译后会报空,并且 sdk 中有丢失的脚本.**

答:sdk 路径不能有中文

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