Bug 60987 - ASMX web service doesn't work with ASP.NET 4.0
Summary: ASMX web service doesn't work with ASP.NET 4.0
Status: NEW
Alias: None
Product: Class Libraries
Classification: Mono
Component: System.Web.Services ()
Version: 5.4 (2017-06)
Hardware: PC Linux
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2017-12-05 13:21 UTC by f.lemaire
Modified: 2017-12-05 13:21 UTC (History)
1 user (show)

Is this bug a regression?: ---
Last known good build:

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Description f.lemaire 2017-12-05 13:21:23 UTC
Mono's exact version is We have a very simple asmx web service with no CodeBehind (the class resides in a compiled assembly placed in the bin directory); the .asmx file just has the following directive :

<%@ WebService Class="Activsoft.LaCollective.Web.SynchronizationService"%>

The dll Activsoft.LaCollective.Web exists in the bin directory, and the SynchronizationService class exists in it too, though it doesn't matter, I can put anything there, it doesn't change the error, which is:

No @webhandler directive found

The stack is as follows:

at System.Web.UI.SimpleWebHandlerParser.GetDirectivesAndContent () [0x001fb] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.UI.SimpleWebHandlerParser..ctor (System.Web.HttpContext context, System.String virtualPath, System.String physicalPath, System.IO.TextReader reader) [0x00156] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.UI.WebHandlerParser..ctor (System.Web.HttpContext context, System.Web.VirtualPath virtualPath, System.String physicalPath, System.IO.TextReader reader) [0x00008] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Compilation.WebHandlerBuildProvider.CreateParser (System.Web.VirtualPath virtualPath, System.String physicalPath, System.IO.TextReader reader, System.Web.HttpContext context) [0x00000] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Compilation.GenericBuildProvider`1[TParser].get_Parser () [0x00048] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Compilation.SimpleBuildProvider.Parse () [0x00000] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Compilation.GenericBuildProvider`1[TParser].get_LanguageName () [0x00000] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Compilation.GenericBuildProvider`1[TParser].get_CodeCompilerType () [0x00008] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Compilation.BuildManagerDirectoryBuilder.GetBuildProviderCodeDomType (System.Web.Compilation.BuildProvider bp) [0x00000] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Compilation.BuildManagerDirectoryBuilder.AssignToGroup (System.Web.Compilation.BuildProvider buildProvider, System.Collections.Generic.List`1[T] groups) [0x0006b] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Compilation.BuildManagerDirectoryBuilder.Build (System.Boolean single) [0x00129] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Compilation.BuildManager.BuildInner (System.Web.VirtualPath vp, System.Boolean debug) [0x00017] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Compilation.BuildManager.Build (System.Web.VirtualPath vp) [0x00058] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Compilation.BuildManager.GetCompiledType (System.Web.VirtualPath virtualPath) [0x00037] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Compilation.BuildManager.GetCompiledType (System.String virtualPath) [0x00006] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.UI.WebServiceParser.GetCompiledType (System.String inputFile, System.Web.HttpContext context) [0x00000] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.Services.Protocols.WebServiceHandlerFactory.GetCompiledType (System.String url, System.Web.HttpContext context) [0x00000] in <d721c96dfac84980aa9bf7b85b4922c8>:0 at System.Web.Services.Protocols.WebServiceHandlerFactory.GetHandler (System.Web.HttpContext context, System.String verb, System.String url, System.String filePath) [0x00047] in <d721c96dfac84980aa9bf7b85b4922c8>:0 at System.Web.HttpApplication.GetHandler (System.Web.HttpContext context, System.String url, System.Boolean ignoreContextHandler) [0x00059] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.HttpApplication.GetHandler (System.Web.HttpContext context, System.String url) [0x00000] in <285fcaed03ee42169c0cbd7bda90aaab>:0 at System.Web.HttpApplication+<Pipeline>d__225.MoveNext () [0x00564] in <285fcaed03ee42169c0cbd7bda90aaab>:0 

I've tried putting a webhandler directive, and I get the expected error that the webhandler directive is unexpected. This does work using Microsoft .NET implementation, and we have many such web services working with Mono's ASP.NET 2.0 implementation, but since Debian stable no longer has ASP.NET 2.0, we are forced to use ASP.NET 4.0.