Odd error opening forms using Lazarus on OSX under certain circumstances lazarus / 10-Designer ---------------------------------------------------------------------- MISV · 2015-05-15 09:29 I have some common ancestor forms (.dfm) in my *shared* dir. If I use  Lazarus OSX *or*  Lazarus Windows to show one of these common forms (including common ones that inherit from other common ones) I can easily do so. However, I have a problem when: 1) I use Lazarus OSX. 2) I open a project. 2.A) Project has *shared* dir in "Other unit files" and "Include files". 2.B) my "programlazarus.dpr" file explicity define path of all my common forms + the new project specific forms that inherit from my common ones. 3) I try open a project form that inherits from one of my common ones. I get this error: QuoteUnable to find the component class "__TmisvFrontBase" It is not registered via RegisterClass and no lfm was found. It is needed by unit [/Volumes/ImageDiskW/W/MyProject/MyForm.pas This I simply do not understand since I otherwise can open similar forms (that inherit from other common ones) in my *shared* directory + I do not hget any errors in Lazarus / Windows