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--- a/Allura/allura/lib/exceptions.py
+++ b/Allura/allura/lib/exceptions.py
@@ -1,6 +1,7 @@
 class ForgeError(Exception): pass
 class ProjectConflict(ForgeError): pass
 class ProjectOverlimitError(ForgeError): pass
+class ProjectRatelimitError(ForgeError): pass
 class ToolError(ForgeError): pass
 class NoSuchProjectError(ForgeError): pass
 class NoSuchNeighborhoodError(ForgeError): pass