debugging - Attach debugger to ASMX service on Azure app service -

i have old service have deployed azure using app service (type: web app). publish asmx direct visual studio 2015 professional. works accept cannot attach vs 2015 pro debugger instance of asmx.

i have set correctly (so think) in azure , deploying debug configuration:

but when attach debugger vs - no errors shown, appears successful until set new breakpoint, (i have confirmed attached w3wp.exe):

i "hollow" breakpoint , error:

the breakpoint not hit. no symbols have been loaded document.

i error is, don't how can attach debugger asmx service on azure?

is attaching debugger asmx on azure not supported?

figured out. despite looking attached, wasn't. had go debug > attach process > , specify website.

using remote debugging option on both cloud explorer , server explorer not work in scenario.

for better walk through:

https://msdn.microsoft.com/en-us/library/dd434211(v=vs.100).aspx

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the real issue: azure not play nice < .net 4
after upgrading package 4.5.2 following:

• attach debugger vs
• use configurationmanager class application settings , connections strings azure
• plus few other basic azure features.

bottom-line, update .net before publishing