我想问下，有个资源加载的时候出现这个错误，其他资源就不会。

[bianchengxiaobei]

AsyncUploadManager: Failed to close file archive:/CAB-020b3b51eeb82f5f87f9c0f95e001576/CAB-020b3b51eeb82f5f87f9c0f95e001576.resS. Ensure all async operations are complete before unloading bundles.是什么原因呢

[tangzx]

没遇到过，AsyncUploadManager 是你项目的代码吧

[bianchengxiaobei]

好像有时候极低的概率是可以加载出来的，但是大部分是有错的。错的分两种：
有时候出现这个错误：
Assertion failed: Cancelling DisplayDialog because it was run from a thread that is not the main thread: Opening file failed Opening file archive:/CAB-020b3b51eeb82f5f87f9c0f95e001576/CAB-020b3b51eeb82f5f87f9c0f95e001576.resS: 操作成功完成。
Closing file : 操作成功完成。
: archive:/CAB-020b3b51eeb82f5f87f9c0f95e001576/CAB-020b3b51eeb82f5f87f9c0f95e001576.resS
Could not open file archive:/CAB-020b3b51eeb82f5f87f9c0f95e001576/CAB-020b3b51eeb82f5f87f9c0f95e001576.resS for read
有时候又出现这个错误：
AsyncUploadManager: Failed to close file archive:/CAB-020b3b51eeb82f5f87f9c0f95e001576/CAB-020b3b51eeb82f5f87f9c0f95e001576.resS. Ensure all async operations are complete before unloading bundles.
UnityEngine.AssetBundle:Unload(Boolean)
Tangzx.ABSystem.AssetBundleInfo:UnloadBundle() (at Assets/ABSystem/Scripts/AssetBundle/AssetBundleInfo.cs:292)
Tangzx.ABSystem.AssetBundleInfo:get_mainObject() (at Assets/ABSystem/Scripts/AssetBundle/AssetBundleInfo.cs:279)
CaomaoFramework.c__AnonStorey0:<>m__0(AssetBundleInfo) (at Assets/Scripts/Framework/UIManager/UIBase.cs:128)
AssetBundleLoader:FireEvent() (at Assets/ABSystem/Scripts/AssetBundle/AssetBundleLoader.cs:106)
AssetBundleLoader:Complete() (at Assets/ABSystem/Scripts/AssetBundle/AssetBundleLoader.cs:90)
MobileAssetBundleLoader:Complete() (at Assets/ABSystem/Scripts/AssetBundle/AssetBundleLoader.cs:285)
c__Iterator0:MoveNext() (at Assets/ABSystem/Scripts/AssetBundle/AssetBundleLoader.cs:217)
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)

是不是异步加载卸载造成的

[bianchengxiaobei]

如果我把：
void UnloadBundle()
{
if (bundle != null)
{
if (WWWResourceManager.enableLog)
Debug.Log("Unload : " + data.compositeType + " >> " + data.debugName);

            bundle.Unload(false);
        }
        bundle = null;
    }

的bundle.Unload(false)注释了就不会有错误

[tangzx]

这个问题倒是没遇见过。Ensure all async operations are complete before unloading bundles. 重点可能在这，你有没有改ABSystem源码，或者多个ab系统共存了，导致一边在加载一边在卸载？

[bianchengxiaobei]

能加个qq聊下吗，好像只有这个资源有问题。其他资源就没问题，很奇怪

[bianchengxiaobei]

大佬，在吗？又有问题，就是场景加载后，加载的UI就会变形。是场景加载时会卸载AB吗，我已经将UI设置为DontDestory了，为啥还会卸载？

[li5414]

这是新版unity的问题,主要是加载ab里面的纹理,然后立即unload(false),延迟unload就行了

[takaaptech]

I think it is relate
https://forum.unity.com/threads/opening-file-failed-opening-file-archive-cab-ca6e2cdc278a53641b19581a975bffc5-cab-ca6e2cdc278a53641.488402/