difference between Mass compile in Project %26 in LabviewTools Advanced mass Compile

[aparab]

what is the differece betwen the two,  Mass Compile option in a Project(LVPROJ) and  LabviewTools Advanced mass Compile

The Issue is if I do the Mass compile thr' the Project I do not get an Error.

But if I  mass compile thr' labview >> tools>> adv. Settings>>mass compile  it shows BAD VI ??

[Sam_Sharp]

I would think that the project mass compile will only compile VIs that are in the project (and perhaps dependencies?!) whereas the one from the tools menu will compile an entire folder - this would include any broken VIs (that aren't in the project).

[aparab]

My Project folder is clear of   Erorr VIs  -->>  there are none

inspite of that  the difference exist.

I am using classes in my Project &   may be  the   class contains information abt  the VIs (the broken ones) 

My Class is added ina llb file which is  part of my project...

In runtine I get issues  with the project.

[aparab]

I think may be I got it , 

there were some unused VIs in the library  (.llb) which  have to  be removed. & then hopefully its ok