Q. My application contains reference models developed using OpenECU 2.8.0 and GCC compiler. During the build process I encounter an issue related to "rtwlib.a" file not being found as shown below: {{attachment:Capture d’écran 2020-01-27 à 18.28.43.png|Capture d’écran 2020-01-27 à 18.28.43.png}} A. This issue has been fixed in a patch file. Please contact support@openecu.com and request for "2_8_0_openecu-patch-22576" file. Affected users: * OpenECU version: 2.8.0 r2019-1 * MATLAB: 2018 only * Compiler: GCC 4.7.3