Assemblies should have the same version

Rule ND2801 .NET Framework Usage / System.Reflection

Reports assemblies whose version differs from the one shared by most application assemblies. Double check first whether multiple versions are legitimate — typically when assemblies are not compiled, developed or deployed together.

How to fix

Use System.Reflection.AssemblyVersion in a source file shared by the assemblies, typically generated by a dedicated MSBuild task like: http://www.msbuildextensionpack.com/help/4.0.5.0/html/d6c3b5e8-00d4-c826-1a73-3cfe637f3827.htm. Versioning advices: http://stackoverflow.com/a/3905443/27194

Severity is major: improper versioning can lead to complicated deployment problems.

CQLinq source

This rule is written in CQLinq, C# LINQ over the NDepend code model. It ships with every new NDepend project: you can read it, adapt it, or use it as a starting point for your own custom rules.

// <Name>Assemblies should have the same version</Name>
// <Id>ND2801:AssembliesShouldHaveTheSameVersion</Id>

warnif count > 0
let versionsLookup = Application.Assemblies.ToLookup(a => a.Version, a=> a)
let mostRepresentedVersion = versionsLookup.OrderByDescending(v => v.Count()).First().Key
from v in versionsLookup
where v.Key != mostRepresentedVersion 
from a in v.ToArray()
select new { 
   a , 
   version = v.Key, 
   mostRepresentedVersion,
   Debt = 10.ToMinutes().ToDebt(),
   Severity = Severity.Medium
}

//<Expl>
// The *{0}* has version *{1}* while most application assemblies have version *{2}*.
//</Expl>

//<Desc>
// Reports assemblies whose version differs from the one shared by most
// application assemblies. Double check first whether multiple versions are
// legitimate — typically when assemblies are not *compiled, developed or
// deployed* together.
//</Desc>

//<HowToFix>
// Use **System.Reflection.AssemblyVersion** in a source file shared by the
// assemblies, typically generated by a dedicated *MSBuild* task like:
// http://www.msbuildextensionpack.com/help/4.0.5.0/html/d6c3b5e8-00d4-c826-1a73-3cfe637f3827.htm.
// Versioning advices: http://stackoverflow.com/a/3905443/27194
//
// Severity is **major**: improper versioning can lead to complicated
// deployment problems.
//</HowToFix>

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