Fatal error: Uncaught Error: Interface "Facade\IgnitionContracts\RunnableSolution" not found in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\facade\ignition\src\Solutions\MakeViewVariableOptionalSolution.php:9 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\facade\ignition\src\Solutions\MakeViewVariableOptionalSolution.php on line 9