Cant open a dll or exe produced by VS2017

I get the following error:

   at Microsoft.Cci.Pdb.MsfDirectory..ctor(PdbReader reader, PdbFileHeader head, BitAccess bits)
   at Microsoft.Cci.Pdb.PdbFile.LoadFunctions(Stream read, Dictionary`2& tokenToSourceMapping, String& sourceServerData, Int32& age, Guid& guid)
   at Mono.Cecil.Pdb.PdbReader.PopulateFunctions()
   at Mono.Cecil.Pdb.PdbReader.ProcessDebugHeader(ImageDebugDirectory directory, Byte[ header)
   at Mono.Cecil.ModuleDefinition.ProcessDebugHeader()
   at ICSharpCode.ILSpy.LoadedAssembly.LoadSymbols(ModuleDefinition module)
   at ICSharpCode.ILSpy.LoadedAssembly.LoadAssembly(Object state)
   at System.Threading.Tasks.Task`1.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()