[SR-Users] is_present_hf error on select

I'm trying to use the is_present_hf function to detect the presence of a user-defined header and getting the following errors in my Kamailio logs: 2(12149) BUG: <core> [select.c:426]: run_select(): Select structure has not been resolved 2(12149) ERROR: <core> [lvalue.c:416]: lval_assign(): assignment failed at pos: (99,58-99,58) 2(12149) ERROR: <script>: A quick Google search yielded no results for why this could be happening. Originally, I had my code in route[REPLY], but noticed that was not one of the paths it was listed as available in the textops document, so I moved it to request_route, but got the same errors. Does anyone have any feedback on how to move forward? My code snippet is below: if (is_present_hf("X-Digium-AppServer-Response-URI")) { $var(a) = @hf_value.X_Digium_AppServer_Response_URI[1]; xlog ("\n\nHERE RESPONSE URI $var(a)\n\n"); } Thanks, Kyle -- *Kyle Kurz* Digium, Inc. · Senior Software Engineer 9115 Brown Deer Rd · San Diego, CA 92121 · US direct +1 858.537.1166 Check us out at: http://digium.com · http://asterisk.org <http://www.asterisk.org/>