Getting error: Undefined symbol: .La154 and .La105 when debugguer is defined. lazarus / 12-Debugger ---------------------------------------------------------------------- DiegoF · 2024-09-13 15:22 Greetings everyone, I'm currently encountering the following errors when trying to compile a Lazarus project: Code: Text  [Select][+][-]window.onload = function(){var x1 = document.getElementById("main_content_section"); if (x1) { var x = document.getElementsByClassName("geshi");for (var i = 0; i Error: Undefined symbol: .La105Error: Undefined symbol: .La154 These errors pop up whenever I try to compile the project or use Run > Clean up and Build. However, they only occur when I use any option other than "Automatic (-g)" in Project > Project Options > Compiler Options > Debugging > Type of debug info. When using "Automatic (-g)", Run > Clean up and Build works like a charm, but if I just try to compile, the IDE asks me to choose a Debug information format. If I select "Run with no debugger," nothing is launched for me to debug. While searching on this forum, I found this topic https://forum.lazarus.freepascal.org/index.php?topic=59581.0. This suggetions: QuoteTry to compile your project with code optimization turned off (-O- command line parameter).Did not work, and contrary to that situation, my project was not converted; it was originally started as a Lazarus project. Using Notepad++, I searched for ".La154" and ".La105" in all *.pas, *.lfm, *.lpi, *.lpr, *.lps files, but nothing was found.