WinRTError：从JavaScript引用C＃组件时出现未知的运行时错误

Question

我正在尝试访问UWP中的C＃组件，但这样做时出现无用的错误：WinRTError: Unknown runtime error。为什么会发生此错误，如何解决？

我正在使用Windows 10，VS 2017，并构建我的项目以满足最低版本10.0.16299.0

这是显示行为的 MVCE ：https://github.com/re-jim/UWPComponentSample

将C＃组件设置为Javascript组件中的引用。

Javascript：

以下功能触发C＃组件，该组件应压缩目录

async zip(content) {
    try {
        console.log('ZipComponent is ', ZipComponent)
        console.log('function is ', ZipComponent.ZipWorker.zipDirectory)
        ZipComponent.ZipWorker.zipDirectory(content.dirPath, content.dirPath + '\\file.ezdrm')
    } catch (err) {
        console.log('err is ',err)
    }
}

我已经console.logged我打算用来显示它存在的组件和方法：

C＃

using System;
using System.Diagnostics;
using System.IO.Compression;

namespace ZipComponent
{
    public sealed class ZipWorker
    {

        public static void ZipDirectory(string folderPath, string outputFile)
        {
            try
            {
                Debug.WriteLine("zippping " + folderPath + " output " + outputFile);
                ZipFile.CreateFromDirectory(folderPath, outputFile);
            }
            catch (Exception e)
            {
                Debug.Write(e);
            }

        }

        public static void UnzipDirectory(string zipFile, string outputPath)
        {
            try
            {
                Debug.WriteLine("unzippping " + zipFile + " output " + outputPath);
                ZipFile.ExtractToDirectory(zipFile, outputPath);
            }
            catch (Exception e)
            {
                Debug.Write(e);
            }
        }
    }
}

我在输出中看不到Debug.WriteLine的输出

ZipDirectory()内部的代码似乎没有引起错误。我将功能替换为：

public static string ZipDirectory(){

    return "hello world"
}

还要编辑javascript函数调用以使其匹配，这给了我与下面相同的错误。

堆栈跟踪：

"WinRTError: Unknown runtime error
   at ZipService.prototype.zip (ms-appx://9ecba615-ddcd-4c3c-a8f1-a09e9aac3e60/dist/zip.service.js:12:13)
   at Generator.prototype.next (native code)
   at onZipRequest (ms-appx://9ecba615-ddcd-4c3c-a8f1-a09e9aac3e60/dist/wrapperMain.js:69:9)
   at Generator.prototype.next (native code)
   at SafeSubscriber.prototype.__tryOrUnsub (ms-appx://9ecba615-ddcd-4c3c-a8f1-a09e9aac3e60/dist/rxjs/rxjs.umd.js:477:13)
   at SafeSubscriber.prototype.next (ms-appx://9ecba615-ddcd-4c3c-a8f1-a09e9aac3e60/dist/rxjs/rxjs.umd.js:415:17)
   at Subscriber.prototype._next (ms-appx://9ecba615-ddcd-4c3c-a8f1-a09e9aac3e60/dist/rxjs/rxjs.umd.js:359:9)
   at Subscriber.prototype.next (ms-appx://9ecba615-ddcd-4c3c-a8f1-a09e9aac3e60/dist/rxjs/rxjs.umd.js:336:13)
   at Subject.prototype.next (ms-appx://9ecba615-ddcd-4c3c-a8f1-a09e9aac3e60/dist/rxjs/rxjs.umd.js:755:17)
   at AppShellService.prototype.zipContent (ms-appx://9ecba615-ddcd-4c3c-a8f1-a09e9aac3e60/dist/main.js:197:13)"