KnowledgeBase/CII.md

 [[_TOC_]]
 
 
+### Failure to build ZPB from ICD \[ICD waf build\]
+
+**Problem**
+
+Building an ICD, I get the following error:
+```
+error: return type specification for constructor invalid
+```
+
+**Solution**
+
+You have defined a struct containing a member of the same name ("feedback" in the example below). Rename one of the two.
+```
+<struct name="feedback">
+        <member name="feedback" type="float" arrayDimensions="(10)"/>
+        <member name="counter" type="uint32_t"/>
+</struct>
+```
+
+**Background**
+
+The code that gets generated for the member looks to the compiler like a mal-formed constructor.
+
+
+
+
 ### No cpp/python from ICD \[ICD waf build\]
 
 **Problem**