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load old version pak file fail

I use 4.19 to load pak file packed by 4.13,Is there something wrong? The error is:

LogPakFile: Error: Attempted seek using thread-specific pak file reader on the wrong thread. Reader for thread 12481 used by thread 10592. LogPakFile: Error: Attempted serialize using thread-specific pak file reader on the wrong thread. Reader for thread 12481 used by thread 10592.

 m_PPakPlatform = new FPakPlatformFile;
 m_PInnerPlatform = &FPlatformFileManager::Get().GetPlatformFile();
 m_PPakPlatform->Initialize(m_PInnerPlatform, TEXT(""));

 FString pakFilePath = FPaths::GameContentDir() + TEXT("Models/uncooked/4f921108d13911e4879a00163e021ee1.pak");
             FPakFile PakFile(m_PPakPlatform, *pakFilePath, false);
             if (!PakFile.IsValid()) {
                 GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red,
                     "Invalid pak file: " + pakFilePath);
             FString MountingPath = FPaths::GameContentDir() + TEXT("4f921108d13911e4879a00163e021ee1") + "/";
             if (!m_PPakPlatform->Mount(*pakFilePath, 0,
                 *MountingPath)) {
                     -1, 5.f, FColor::Red, "Failed to mount pak file: " + pakFilePath);
             TSet<FString> fileList;
             PakFile.FindFilesAtPath(fileList, *PakFile.GetMountPoint(), true, false,
             UE_LOG(LogTemp, Warning, TEXT("------------------"));
             for (FString File : fileList.Array())
                 FString AssetPath;
                 if (File.EndsWith(FPackageName::GetAssetPackageExtension()) ||
                     File.EndsWith(FPackageName::GetMapPackageExtension())) {
                     FString assetShortName = FPackageName::GetShortName(File);
                     AssetPath = FString(TEXT("/Game/")) + TEXT("4f921108d13911e4879a00163e021ee1") + TEXT("/") + assetShortName + TEXT(".") +
                 UObject* Object = LoadObject<UObject>(nullptr, *AssetPath);
                 if (Object)
                     UE_LOG(LogTemp, Warning, TEXT("Object:%s"), *Object->GetName());

Product Version: UE 4.19
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asked Sep 29 '18 at 06:42 AM in C++ Programming

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