Msbuild creating different assembly in build machine and local machine

Question

In our deployed application(in AFS), created by msbuild in a build machine, a call to a member function from another member function in the sameclass
is failing with an exception "absolute path information is required".
My locally built application is working fine. Our application is configured as "AnyCpu" and “Debug”. I have tried msbuild build in my machine using a 32 bit msbuild and 64 bit msbuild. In
both cases the assembly created is running without a problem. So it is the build machine which is producing the problem dll
We thought we should find the core cause of the issue
Details:
The "problem" class.
 [Export("SomeName",
typeof(IDataPresenter))]
[PartCreationPolicy(CreationPolicy.NonShared)]
public class
SomeDataPresenter : MyDataPresenter
  protected void
BeginFieldsWithDi(ReportFields reportDefinition)
    if(reportDefinition.ReportDimension != null)
reportDefinition.ReportDimension.ForEach(x =>x.LogicalName=_reportHelper.AddDiStart(x.LogicalName));
    if(reportDefinition.ReportMeasure != null)
reportDefinition.ReportMeasure.ForEach(x => x.LogicalName =
_reportHelper.AddDiStart(x.LogicalName));
protected override
bool UpdateReport(ReportFields reportDefinition, bool isReportExecution)
//the following call is failing with exception"absolute path information is required".    
BeginFieldsWithDi(ReportFields reportDefinition);
//the base classes just for clarity
[PartCreationPolicy(CreationPolicy.NonShared)]
public class
MyDataPresenter: BaseDataPresenter, IMyDataPresenter
[Export("DefaultReportDataPresenter", typeof(IDataPresenter))] 
[PartCreationPolicy(CreationPolicy.NonShared)]
 public class
BaseDataPresenter: Model, IBaseDataPresenter
For BeginFieldsWithDi() function the IL in my local machine and the deployed IL is different(Only the beginning part which is given below)
IL in my machine
.method family hidebysig instance void  RemoveDiFromFields() cil managed{
  // Code size       119 (0x77)
  .maxstack  3
  .locals init ([0] class [mscorlib]System.Action`1<class [MyApp.Infra]ReportFieldsReportDimension> 'CS$<>9__CachedAnonymousMethodDelegatef',
           [1] class [mscorlib]System.Action`1<class [MyApp.Infra]ReportMeasure> 'CS$<>9__CachedAnonymousMethodDelegate10',
           [2] bool CS$4$0000)
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldnull
  IL_0003:  stloc.1
  IL_0004:  nop
  IL_0005:  ldarg.0
  IL_0006:  call       instance class [MyApp.Infra]ReportFields [MyApp.Modules.Ux]MyApp.Modules.Ux.Controls.VirtualGrid.Applications.Controllers.ReportDataPresenter::get_ColumnMetadata()
IL from deployed DLL
.method family hidebysig instance void  RemoveDiFromFields() cil managed
  // Code size       119 (0x77)
  .maxstack  3
  .locals init (class [mscorlib]System.Action`1<class [MyApp.Infra]ReportFieldsReportDimension> V_0,
           class [mscorlib]System.Action`1<class [MyApp.Infra]ReportMeasure> V_1,
           bool V_2)
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldnull
  IL_0003:  stloc.1
  IL_0004:  nop
  IL_0005:  ldarg.0
  IL_0006:  call       instance class [MyApp.Infra]ReportFields [MyApp.Modules.Ux]MyApp.Modules.Ux.Controls.VirtualGrid.Applications.Controllers.ReportDataPresenter::get_ColumnMetadata()
Question: What causes the IL to generate “CachedAnonymousMethodDelegate” entry in my machine and does not in the build machine (which is deployed)? 
If we can deduct the cause of the exception("absolute path information is required") from above, what is it?

Answer 1

Update:
Changed the code to prevent compiler from creating closures. All is fine now.
Looks like the compiler which the build machine uses is not creating the closures correctly. A bug which is already fixed perhaps(which is why it is working fine in my machine) 
protected void BeginFieldsWithDi(ReportFields reportDefinition) 
if (reportDefinition.ReportDimension != null)           
foreach (var dimension in reportDefinition.ReportDimension)
dimension.LogicalName = _reportHelper.AddDiStart(dimension.LogicalName); 
if (reportDefinition.ReportMeasure != null)           
foreach (var measure in reportDefinition.ReportMeasure)      {                   
measure.LogicalName =_reportHelper.AddDiStart(measure.LogicalName);