wcf web service遇到"Could not load file or assembly App_Web..."问题

在IIS中部署wcf webservice，遇到"Could not load file or assembly App_Web..."问题。

原因是修改了wcf webservice的方法，需要把.svc文件覆盖原来的即可解决。详见下网页。

Could not load file or assembly App_web_.... (WCF) - ASP.NET Forums

It could be that whenever you change method signature (Add / remove methods, change parameters. change method names etc.) it may happend.

You need, whenever you deploey the service class'es DLL, to copy the .svc file as well.