Growing in Unreal Engine operating CLion can be a terrific way to make your tournament or 3D application, particularly if you like streamlined, code-focused conditions. Yet, one typical issue that designers face when operating CLion with Unreal Engine is the error statement: “Cannot get compiler data.”

What Accomplishes "Cannot Get Compiler Data" Mean?

When you visit the “Cannot get compiler data” error, it usually means that Unreal Engine is having a problem finding or configuring your C++ compiler such as:

  • Wrong form of CLion or Unreal Engine.
  • Cutting or misconfiguring compiler courses.
  • CLion is not being connected to the right Visual Studio means (on Windows) or Xcode tools (on macOS).

Why You Might Experience This Mistake While Restoring DrawMesh() from Unity

When you’re restoring Unity’s DrawMesh() to Unreal Engine, you’ll probably be required to dip into Unreal’s C++ code for business rendering. If you haven’t set up CLion or Unreal Engine perfectly to collect the principle, you could head into the “Cannot get compiler data” error during the constitution or compilation method.

DrawMesh() in Unity is a process used to now generate a mesh to the net, missing Unity’s normal rendering channel. When porting this functionality to Unreal, you ought to make custom C++ classes and utilize Unreal’s Rendering API (like DrawMeshSection() or StaticMeshComponent) to reproduce this conduct.

If Unreal Engine can’t correctly see the C++ compiler in CLion, it can’t collect your rendering regulation, showing mistakes like “Cannot get compiler data.”

How to Select the "Cannot Get Compiler Data" Error.

Let’s walk through the efforts to fix the “Cannot get compiler data” error when performing with Unreal Engine and CLion.

Step 1: Provide Good Building of Unreal Engine and CLion

Rather, make certain that both Unreal Engine and CLion are seated perfectly on your plan.

  • Establish Unreal Engine: Make sure you have the most detailed understanding of Unreal Engine established via the Epic Games Launcher.
  • Install CLion: Download and establish the most delinquent performance of CLion from JetBrains.

Step 2: Set Up Unreal Engine to Operate CLion

After establishing both schedules, you ought to guarantee that Unreal Engine is configured to operate CLion as the bankruptcy IDE for C++ products.

  1. Open Unreal Engine.
  2. Proceed to Edit > Editor Preferences.
  3. Underneath General > Source Code, like CLion as the selected IDE.

Once this is accomplished, Unreal Engine should automatically cause the right task files for CLion when you start or open a task.

Step 3: Configure Your Compiler

The most typical reason for the “Cannot get compiler data” mistake is a misconfigured or without compiler. The efforts to fix this turn on your working method:

For Windows:

  1. Install Visual Studio: Unreal Engine on Windows depends on Visual Studio for its C++ collection. Make sure you have Visual Studio 2019 or later established, along with the required C++ product tools (such as the Desktop product with C++ workload).
  2. Link Visual Studio to Unreal Engine: In Unreal Engine, head to Edit > Task Settings > Platforms > Windows. Make sure that the compiler is perfectly connected to the Visual Studio building.
  3. Review Climate Variables: Unreal Engine may also require setting variables to find the compiler. Make sure VS and MSBuild courses are counted to your system’s background variables.

For macOS:

  1. Install Xcode: On macOS, Unreal Engine depends on Xcode to compile C++ code. Establish the most delinquent understanding of Xcode from the Mac App Store.
  2. Configure Xcode in Unreal Engine: Open Unreal Engine, head to Edit > Project Locations > Podia > Mac, and make sure Xcode is correctly connected to the task.
  3. Corresponding Xcode Command Line Tools: Occasionally, Unreal may not see Xcode’s command-line tools. You can fix this by executing Xcode-select –install in the airport.

Step 4: Restore Project Files for CLion

Sometimes the Unreal assignment files themselves can get corroded or obsolete, forcing the compiler problem. Restoring these files can fix many issues.

  1. In Unreal Engine, go to File > Develop Visual Studio task files (even though you’re operating CLion, this step assures that all vital files are in place).
  2. Open the task folder in CLion and let it index the files too.
  3. Once CLion includes dead indexing, try making the task too.

Step 5: Review for Missing Dependencies

If you are trading with custom C++ code (like restoring Unity’s DrawMesh()), make sure that your task has all the needed dependencies and titles. Skipping files or false references to Unreal’s rendering modules (such as StaticMeshComponent, Materials, or Shader modules) could also generate compilation issues.

Transforming Unity’s DrawMesh() to Unreal Engine

When adjusting Unity’s DrawMesh() to Unreal Engine, you’ll be required to comprehend Unreal’s rendering channel. DrawMesh() in Unity lets you generate a mesh at a precise place with a selected material, change, and other opportunities. Unreal Engine doesn’t have a natural match, but you can reach the same effect by using StaticMeshComponent or DrawMeshSection in C++.

Here’s an instance of how you might transform Unity’s DrawMesh() to Unreal Engine:

Sample Code for Transforming DrawMesh()

index.js
C#
void AMyActor::DrawCustomMesh(UStaticMesh* Mesh, UMaterialInterface* Material, FTransform Transform)
{
    UStaticMeshComponent* MeshComponent = NewObject<UStaticMeshComponent>(this);
    
    MeshComponent->SetStaticMesh(Mesh);
    MeshComponent->SetMaterial(0, Material);
    MeshComponent->SetWorldTransform(Transform);
    MeshComponent->AttachToComponent(RootComponent, FAttachmentTransformRules::KeepRelativeTransform);
    MeshComponent->RegisterComponent();
}

This function lets you dynamically build and generate a mesh at runtime, equivalent to Unity’s DrawMesh(). Create certain the UStaticMesh and UMaterialInterface are valid help in your task.

Deduction:

The “Cannot get compiler data” error can be a frustrating roadblock when operating CLion with Unreal Engine, but it’s usually driven by misconfiguration of the compiler or the IDE configuration. By pursuing the actions to configure CLion, Visual Studio, or Xcode, and restoring your task files, you can get Unreal Engine and CLion working jointly smoothly.  

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