How can I get /clr support it's giving errors

Dear Friends
I have a mfc application. When I compile with option of /clr support it gives errors as below.
How can I make the code managed. Please give me some hints.

Code:

1>------ Build started: Project: RevolutionProj, Configuration: Debug Win32 ------
1>Build started 1/24/2012 5:25:52 PM.
1>InitializeBuildStatus:
1>  Touching "Debug\RevolutionProj.unsuccessfulbuild".
1>GenerateTargetFrameworkMonikerAttribute:
1>Skipping target "GenerateTargetFrameworkMonikerAttribute" because all output files are up-to-date with respect to the input files.
1>cl : Command line error D8016: '/ZI' and '/clr' command-line options are incompatible
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:01.09
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========