When I press compile on the installer.iss, a compiler error pops up saying, "Line 49: No found matching "C:\Users{...}\Downloads\drop-icons-main\drop-icons-main\installer src\,,\src\DropIcons\bin\Release*." The Output file still shows, but is empty.
Have you already compiled the project in Visual Studio? The installer probably didn't find the binaries if they haven't been compiled, that's what "...bin\Release" says.
When I press compile on the installer.iss, a compiler error pops up saying, "Line 49: No found matching "C:\Users{...}\Downloads\drop-icons-main\drop-icons-main\installer src\,,\src\DropIcons\bin\Release*." The Output file still shows, but is empty.