I have downloaded the 2.6.1 rc1 for .NET 4.0 RC1. The .NET 4.0 RC is installed by the vs2010 RC installation. The ironpython msi failed to install. I have searched the mailing list for related issues. It looks like I have to run mscorsvw.exe -i to install the .NET runtime optimization service. I then tried manually install it and the mscorsvw.exe fails completely. I cannot find it in either the device manager or services list.<br>
<br>I then generate a full install log for ironpython to dig in the details. And it complains that ngen fails:<br>ExecNetFx: Error 0x80070002: failed to execute Ngen command: C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\ngen.exe install "C:\Program Files\IronPython 2.6 for .NET 4.0 RC\Microsoft.Scripting.dll" /queue:1<br>
Action 8:31:54: Rollback. Rolling back action:<br>Rollback: Publishing product information<br>Rollback: Publishing Product Features<br><br>I am puzzled now why it tries to use ngen from v2.0 instead of v4.0. Since this is a clean install of .NET 4.0. The ngen.exe does not even exists in the v2.0.50727 directory.<br>
<br>Any help?<br><br>-Zhichao<br><br clear="all">Zhichao Hong, CSDP<br><a href="mailto:zhichao.hong@computer.org">zhichao.hong@computer.org</a><br>