Could not load the assembly 'App_Web_cwclgcuu'. Make sure that it is compiled before accessing the page.

将网站迁移到windows server 2012 R2(64 bit), IIS 6.2(build 9200)上，爆出这个错误。

解决：右键相应的application pool，选择“Set Application Pool Defaults”菜单，找到Enable 32-Bit Applications 属性，将其设置为True。