Unity WWW.LoadFromCacheOrDownload or UnityWebRequest.GetAssetBundle is nightmare for 2017

5.4 has load multiple asstbundle same time will freeze
https://issuetracker.unity3d.com/is...assetbundle-dot-loadassetasync-freezes-editor

5.5.2 has bug
request.isError == false && string.IsNullOrEmpty(request.error) && handle.assetBundle == null
Log crc mismatch . i am sure my crc is right

5.6 has Dependencies bug
https://forum.unity3d.com/threads/l...he-c-virtual-machine-restart-in-5-6-x.472965/

my game is ready to release.

we need a stable version for help

 

i use old version (5.5.2) build assetbundle. and build on ios.
when i upgrade the unity version. and rebuild the assetbundle .
i got crc mismatch error

request = UnityWebRequest.GetAssetBundle(url, m_AssetBundleManifest.GetAssetBundleHash(assetBundleName), GetCRC(assetBundleName));

res:
https://gm.aliother.com/asset/3/AssetBundles/iOS/audio_ui_onclick
https://gm.aliother.com/asset/3/AssetBundles/iOS/audio_ui_onclick.manifest

here is the Log

Error while downloading Asset Bundle: CRC Mismatch. Provided f81515b1, calculated 85e60b08 from data. Will not load AssetBundle 'https://gm.aliother.com/asset/3/AssetBundles/iOS/audio_ui_onclick'

4162131377 == f81515b1;

where is the 85e60b08? I Clear the All cache , i not use . i redownload all assetbundle . it also crcmimatch.

i have to del my build on my phone .

 

i have the same problem...that my code

using (WWW www = WWW.LoadFromCacheOrDownload(downloadUrl, version))
{
yield return www;
if (www.error != null)
{
throw new Exception("WWW download:" + www.error);
}
AssetBundleRef abRef = new AssetBundleRef(url, version);
abRef.assetBundle = www.assetBundle;
dictAssetBundleRefs.Add(keyName, abRef);
www.Dispose();
//www = null;
}

in Unity 5.5.1 is work right, but in Unity 2017.1.0f3...the www has error...

at UnityEngine.SetupCoroutine.InvokeMoveNext (IEnumerator enumerator, IntPtr returnValueAddress) [0x00028] in /Users/builduser/buildslave/unity/build/Runtime/Export/Coroutines.cs:17

 

thanks......but there are still error, i found it come from the line
using (WWW www = WWW.LoadFromCacheOrDownload(downloadUrl, version))

NullReferenceException: UnityWebRequest has already been destroyed
at (wrapper managed-to-native) UnityEngine.Networking.UnityWebRequest:GetDownloadHandler ()
at UnityEngine.Networking.UnityWebRequest.DisposeHandlers () [0x0000e] in C:\buildslave\unity\build\artifacts\generated\common\modules\UnityWebRequest\WebRequestBindings.gen.cs:173
at UnityEngine.Networking.UnityWebRequest.Dispose () [0x00002] in C:\buildslave\unity\build\artifacts\generated\common\modules\UnityWebRequest\WebRequestBindings.gen.cs:161
at UnityEngine.WWW.Dispose () [0x00007] in C:\buildslave\unity\build\Runtime\WebRequestWWW\UWRWWW.cs:238
at FireflyLib.File.AssetBundleManager+<DownloadAssetBundle>c__Iterator0.<>__Finally0 () [0x00011] in D:\Work\MiniCraft2017\client\MiniCraft\Assets\Scripts\FireflyLib\File\AssetBundleManager.cs:75

i check the asset file is indeed inside the folder, then i clear and rebuild all AssetBundle for many times, but the problem is still......
the error only found in Unity 2017.1.0f3.......i change to Unity 5.5.1, everything right=.=