Adding VisibleAnywhere to UPROPERTY breaks compilation

Development Programming & Scripting C++
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1

I have built some USTRUCTs which I have used to build datatables, all working great. Each element is wrappered in a UPROPERTY like this:

UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Table|stuff")
    FName mapName;

This all works OK, and I can import my CSV into the Datatable and the raw data appears at the top of the screen, except I cannot view the data in the row editor section. I did a quick google and found that I need to add the VisibleAnywhere option to the UPROPERTYs So I did:

UPROPERTY(EditAnywhere, BlueprintReadWrite, VisibleAnywhere, Category = "Table|stuff")
    FName mapName;

However now it will not compile, and I get the error OtherCompilationError(5) and -WaitMutex - FromMsBuild" exited with code 5. Please verify that you have sufficient rights to run this command.

I have tried closing down the editor and Visual Studio (2017), rebuilding VS project files, re-opening and compiling with the same result. If I remove the VisibleAnywhere then everything compiles fine. I have added this just to a single UPROPERTY and also all of them within a structure, it makes no difference.

Any ideas much appreciated.

Thanks

2

If you go to your output tab you will see

....h(19) : LogCompile: Error: Found more than one edit/visibility specifier (VisibleAnywhere), only one is allowed

which tells you, you can either use VisibleAnywhere or EditAnywhere both at the same time will not work

3

Excellent thank you, I hadn’t spotted that in the Output. It compiles now, but still cannot see the rows in the Row Editor :confused: More digging for me I guess.
Thanks

4

can you post the whole struct maybe there is something wrong in the USTRUCT() or in the rest of the definitions,

Also, how are you using the struct?

5

The struct is being used to create a data table. Whole struct is:

USTRUCT(BlueprintType)
struct GAME_API FC_Maps : public FTableRowBase 
{
    GENERATED_USTRUCT_BODY()

    UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Table|Maps")
    FName mapName;
    UPROPERTY(VisibleAnywhere, BlueprintReadWrite,  Category = "Table|Maps")
    TArray<FName> subNames;
    UPROPERTY(VisibleAnywhere, BlueprintReadWrite,  Category = "Table|Maps")
    FString public;
    UPROPERTY(VisibleAnywhere, BlueprintReadWrite,  Category = "Table|Maps")
    UTexture2D* image;
    UPROPERTY(VisibleAnywhere, BlueprintReadWrite,  Category = "Table|Maps")
    bool selectable;
};
6

I have done more testing and the problem is the Category I used!!

Single entry is fine, but with a pipe separator, the RowEditor is not happy at all!

7

interesting, good to know

8

Tested it a few times with a fresh struct with a single entry. Have reported it as a bug to Epic :slight_smile: