Debian 9
Codeblocks svn Build rev 11374
SDK Version 1.36.0
Scintilla 3.7.5
I experienced this error either downloading binary packages as well as compiling from sources.
This was upgrading from the version that's available from apt (16 something I guess). The property null="true" doesn't cause errors in the old version.
I've seen this error happening before on windows too. I now realize it was related to me tweaking the c++ syntax highlighting to my liking.