fix: when removing targets with projects including widgets, ref may not be found

This case can be safely ignored to prevent a cli hard exit

Author: NathanWalker

lib/pbxProject.js

@@ -1855,10 +1855,13 @@ pbxProject.prototype.removeTarget = function(target, targetKey) {
 
                 if(!stillReferenced) {
                     var frameworkFileRef = fileReferenceSection[fileRef];
-                    var fileToRemove = new pbxFile(unquote(frameworkFileRef.path), {basename: frameworkFileRef.name});
-                    fileToRemove.fileRef = fileRef;
-                    this.removeFromFrameworksPbxGroup(fileToRemove);
-                    removeItemAndCommentFromSectionByUuid(fileReferenceSection, fileRef);
+                    if (frameworkFileRef?.path) {
+                        // when working with widgets, the framework might be in a different group
+                        var fileToRemove = new pbxFile(unquote(frameworkFileRef.path), {basename: frameworkFileRef.name});
+                        fileToRemove.fileRef = fileRef;
+                        this.removeFromFrameworksPbxGroup(fileToRemove);
+                        removeItemAndCommentFromSectionByUuid(fileReferenceSection, fileRef);
+                    }
                 }
             }
             files = files.concat(frameworkFiles);