@@ -0,0 +1,7 @@
+smalltalk.addPackage('Helios-Exceptions');
+smalltalk.addClass('HLError', smalltalk.Error, [], 'Helios-Exceptions');
+
+smalltalk.addClass('HLChangeForbidden', smalltalk.HLError, [], 'Helios-Exceptions');
@@ -0,0 +1,9 @@
+Smalltalk current createPackage: 'Helios-Exceptions'!
+Error subclass: #HLError
+ instanceVariableNames: ''
+ package: 'Helios-Exceptions'!
+HLError subclass: #HLChangeForbidden