iOS Charts subclass Markerview use Swift always Build Error in “xxx-Swift.h”

[o0oi1i]

• [✔︎] I've read, understood, and done my best to follow the *CONTRIBUTING guidelines.

What did you do?

Subclass Markerview in "TestMV.swift" file:

 import UIKit
 import Charts
 class TestMV: MarkerView {
 .....
 }

What did you expect to happen?

Build Success

What happened instead?

Build Fail in “ProjectName-swift.h”
https://stackoverflow.com/questions/61499537/ios-charts-subclass-markerview-use-swift-always-build-error-in-xxx-swift-h
TestMV subclass Markerview in "TestMV.swift"

Build always error in "ProjectName-Swift.h"

Markerview in "Charts" Framework

Charts Environment

Charts version/Branch/Commit Number:3.5.0
Xcode version:11.3.1
Swift version:5
Platform(s) running Charts:iOS 13.3
macOS version running Xcode:

Demo Project

ℹ Please link to or upload a project we can download that reproduces the issue.

[o0oi1i]

#import <Charts/Charts-Swift.h>