The error "Scan error: thread 0: Please fill something in" (often accompanied by code 100) occurs when Cheat Engine is triggered to perform a scan without valid input or due to environment conflicts. Primary Causes and Solutions

The error message indicated that Alex hadn't properly set up his scan. Cheat Engine requires you to specify what you're looking for—whether it's a specific value, a range of values, or a change in values.

The error message "Scan error: thread 0: Please fill something in 100" typically occurs in Cheat Engine when the user attempts to perform a scan without providing a valid input value in the search box. In this context, "100" refers to the specific value you were likely trying to search for or a placeholder in the error string. Troubleshooting the Error

: If you are scanning a 64-bit application with the 32-bit (i386) version of Cheat Engine, it may fail. Always match the architecture (e.g., use cheatengine-x86_64.exe Set Process Affinity : Some users find success by going to Task Manager > Details , right-clicking Cheat Engine.exe