Error when try to publish it.

[qcmiao1998]

When I try to run dotnet publish -r win-x64 or run electronic build /target win, it shows the error below:

EXEC : error : Format of the executable (.exe) or library (.dll) is invalid. [D:\Visual Studio 2017\Projects\BlazorElectronExperiment.Sample\SampleApp\SampleApp.csproj]
     at Mono.Cecil.PE.ImageReader.ReadOptionalHeaders(UInt16& subsystem, UInt16& dll_characteristics)
     at Mono.Cecil.PE.ImageReader.ReadImage()
     at Mono.Cecil.PE.ImageReader.ReadImage(Disposable`1 stream, String file_name)
     at Mono.Cecil.ModuleDefinition.ReadModule(String fileName, ReaderParameters parameters)
     at Microsoft.AspNetCore.Blazor.Build.RuntimeDependenciesResolver.<>c.<ResolveRuntimeDependenciesCore>b__1_0(String a) in /_/src/Microsoft.AspNetCore.Blazor.Build/Core/RuntimeDependenciesResolver.cs:line 33
     at System.Linq.Enumerable.SelectArrayIterator`2.ToArray()
     at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
     at Microsoft.AspNetCore.Blazor.Build.RuntimeDependenciesResolver.ResolveRuntimeDependenciesCore(String entryPoint, String[] applicationDependencies, String[] monoBclDirectories) in /_/src/Microsoft.AspNetCore.Blazor.Build/Core/RuntimeDependenciesResolver.cs:line 32
     at Microsoft.AspNetCore.Blazor.Build.Cli.Commands.ResolveRuntimeDependenciesCommand.<>c__DisplayClass0_0.<Command>b__0() in /_/src/Microsoft.AspNetCore.Blazor.Build/Cli/Commands/ResolveRuntimeDependenciesCommand.cs:line 44