我假设您的意思是"Unable ..."而不是"Enable"，在这种情况下，要部署的计算机不会安装了合适的dotNet版本，或者如果这是一个asp.net应用程序，则相应的dotNet版本未正确注册到IIS中.

如果您没有安装该版本，只需从Microsoft下载并安装.

如果您需要向IIS注册，请按照此处的说明进行操作

I''m assuming that you mean "Unable..." and not "Enable" in which case the machine you are deploying to doesn''t have the appropriate dotNet version installed, or the appropriate dotNet version is not registered into IIS properly if this is an asp.net application.

If you don''t have the version installed, just download it from Microsoft and install it.

If you need to register it with IIS, then do it following instructions found here

要解决此问题，请尝试以下步骤:

1.下载.NET Framework清理工具，然后选择清理导致您的系统出现问题的.NET Framework版本

2.下载并安装您在步骤1中清理的.NET Framework版本(例如.NET Framework 1.0，.NET Framework 1.1或.NET Framework 2.0)

3.(可选)下载并运行.NET Framework验证工具，以仔细检查所有.NET Framework文件是否已正确安装

4.通过直接运行安装程序包而不是使用Windows Update，下载并安装所需的.NET Framework Service Pack(例如.NET Framework 1.0 SP3或.NET Framework 1.1 SP1).直接运行它可以使Service Pack安装程序显示错误对话框，而不是让Windows Update取消显示它们.

有关更多详细信息，请访问如果其他.NET Framework安装疑难解答步骤无济于事怎么办.

To fix the this issue, please try the following steps:

1. Download the .NET Framework cleanup tool and choose to clean up the version of the .NET Framework that is causing problems on your system

2. Download and install the version of the .NET Framework that you cleaned up in step 1 (such as the .NET Framework 1.0, .NET Framework 1.1 or .NET Framework 2.0)

3. (optional) Download and run the .NET Framework verification tool to double-check that all .NET Framework files are correctly installed

4. Download and install the desired .NET Framework service pack (such as .NET Framework 1.0 SP3 or .NET Framework 1.1 SP1) by running the setup package directly instead of using Windows Update. Running it directly will allow the service pack setup to display error dialogs instead of having Windows Update suppress them.

For more details, please visit What to do if other .NET Framework setup troubleshooting steps do not help.

您确定安装了正确的.Net版本吗?

Are you sure you have the correct version of .Net installed?