c# - StyleCop and FxCop rules exclude each other

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I'm using StyleCop and FxCop tools to
improve my code but I came to a place where there are two rules, one in StyleCop and one
in FxCop that exclude each other. If I fix my code to match the rule from StyleCop then
FxCop validation fails and vice versa.

First
rule is SA1200 from StyleCop which says that all using directives must be placed inside
of the namespace.

All using directives must be placed inside of the
namespace.

So
I have done something like
this

namespace
            MyNamespace
{
 using System;


            ...
}

It
was ok for StyleCop, no more warnings. Now I run FxCop validation and it tells me that
CA1014 is violated:

Mark 'MyApp.dll' with CLSCompliant(true) because it exposes externally visible
types.

To resolve
this I should do something like
this:

[ClsCompliant(true)]

namespace
            MyNamespace
{

            ...
}

but
now I cannot build my project because ClsCompliant attribute is
not recognized (because it's from System namespace which I
include inside of the MyNamespace). So if I move
using System; directive outside of
MyNamespace declaration. This will make my code compile but
again it will break the rule from StyleCop.

Is
there any way to deal with this problem except for disabling one of the rules in
StyleCop or FxCop? And if that's not possible which of the rules should I disable? Which
is less important?

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class="normal">Answer

Use full attribute
name:

[System.CLSCompliant(true)]
namespace
            MyNamespace
{

            ...
}

BTW:
if you want to mark your whole assembly as CLSCompliant,
put

[assembly:
            System.CLSCompliant(true)]

in
Properties/AssemblyInfo.cs file