.net framework 4.0环境下部署系统出现 Unable to validate data

[yeyf]

最近部署一个.net framework 4.0 的B/S系统时，出现如下错误，网上目前这方面的问题，都没有很好的答案。
Server Error in '/' Application.
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Unable to validate data.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: Unable to validate data.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.