Could not find class or interface (12886)

I am trying to instantiate a class from another project but I am facing the error 12886 "Could not find class or interface.

I checked the project property of OrderImporter to reference Tools project but it does not change anything.

Also, I checked in the class browser and everything seem ok. There is even an example how to use my own class but it does not works outside of the project Tools.

Does someone have an idea where I fail? Thank you! Sebastien

Project OrderImporter | C:\workspace\Progress\OrderImporter\Test.cls

USING Progress.Lang.*.
USING Tools.StringHelper. <-- Could not find class or interface (12886)

CLASS Test:
METHOD PUBLIC VOID BipBip():
DEFINE VARIABLE arrSplit AS System.Collections.ArrayList NO-UNDO.
arrSplit = Tools.StringHelper:Split("VALUE1*VALUE2*VALUE3", "*").
END METHOD.
END CLASS.


Project Tools | C:\workspace\Progress\Tools\StringHelper.cls

USING Progress.Lang.*.

CLASS Tools.StringHelper:
METHOD STATIC PUBLIC System.Collections.ArrayList Split(
INPUT strValues AS CHARACTER
,INPUT strSeparator AS CHARACTER):

/* doing something */
/* returning something */
RETURN arrReturn.

END METHOD.
END CLASS.

Continue reading...