There is always the same crash report no matter how I change this period of code.

[歼轰20]

 for (int i = 1; i < 9; i++)
{
FString yy = FPaths::GameDir();
yy.Append("Content/Assets/Resources/").Append(FString::FromInt(i)).Append("_Sprite.").Append("Paper2DSprite_C");
UClass* NowClass = ConstructorHelpers::FClassFinder<APaperSpriteActor>(yy.GetCharArray().GetData()).Class;
TSubclassOf<APaperSpriteActor>NowClassA = NowClass;
Classes.Add(NowClassA);
}

I'm trapped here for several days and have been searching useful data on the Internet till now.Who can tell me how to solve the problem?I'll appreciate it if anyone helps me.

[ExtraLifeMatt]

You should probably post the problem you're getting and what you're trying to do. I assume you're trying to reference 9 sprites and add them all to a class array (which really doesn't make sense)?

So, here's where you can be going wrong:

1. The path you are constructing is invalid (so ClassFinder returns null). You should check that NowClass isn't nullptr.

2. You can use Cast<APaperSpriteActor> instead of TSubclassOf to do your casting.

Also it should be noted that you are loading CLASSES here and not OBJECTS. So, unless you have 9 different classes that all inherit from Paper2DSprite_C and plan to instance them later - I'm not sure what you're going for.

[歼轰20]

I just wonder how I can write down the right path and the right file name.I create 8 different classes and want them to be the classes of the sprites in the following screenshot.I only know that if I pull the sprites into the scene,they'll be APaperSpriteActors.

So what path and name should I type?Please tell me,and I'll be thankful.

[wzspdw]

1.ConstrutorHelpers一定放在Constructor里，不要放在后面其他的方法中
2.右键Sprite会有Get Reference，点击即可复制，掐头去尾即可使用

[歼轰20]

非常感谢。

[歼轰20]

I changed that period of code and now it becomes as following code:

for (int i = 1; i < 9; i++)
{
FString yy = "/Game/Assets/Resources/";
yy.Append(FString::FromInt(i)).Append("_Sprite.").Append(FString::FromInt(i)).Append("_Sprite");
UObject* NowObject = ConstructorHelpers::FObjectFinder<APaperSpriteActor>(yy.GetCharArray().GetData()).Object;
UClass* NowClassA = NowObject->StaticClass();
Classes.Add(NowClassA);
}

But the project still crashed and when I "send and restart",a message jumped out as following screenshot.
:

[wzspdw]

I changed that period of code and now it becomes as following code:

for (int i = 1; i < 9; i++)
{
FString yy = "/Game/Assets/Resources/";
yy.Append(FString::FromInt(i)).Append("_Sprite.").Append(FString::FromInt(i)).Append("_Sprite");
UObject* NowObject = ConstructorHelpers::FObjectFinder<APaperSpriteActor>(yy.GetCharArray().GetData()).Object;
UClass* NowClassA = NowObject->StaticClass();
Classes.Add(NowClassA);
}

But the project still crashed and when I "send and restart",a message jumped out as following screenshot.
:

在非构造函数加载sprite而不是class的话，用LoadObject更灵活 ，例如LoadObject<UDataTable>(NULL, UTF8_TO_TCHAR("/Game/DATA/PMV_ATTACK_DEF.PMV_ATTACK_DEF")）

[歼轰20]

在非构造函数加载sprite而不是class的话，用LoadObject更灵活 ，例如LoadObject<UDataTable>(NULL, UTF8_TO_TCHAR("/Game/DATA/PMV_ATTACK_DEF.PMV_ATTACK_DEF")）

谢了，我现在就去试一试。

[歼轰20]

Now the program is able to run,but I can't see the APaperSpriteActor actors,and when I finish it,the warnings jumped out as following screenshots:

So I wonder how I can change the property of mobility.Thanks if someone tells me.

[歼轰20]

Could someone help me with the newest problem?I've searched the data about it on the Internet,but there's nothing about it.