When I click "run make and insert" I get the following window:



Could someone please help me solve this problem?

-I have devkitPro installed
-The path to the ASM patch template folder does not contain spaces or unusual characters.

Most people use NCPatcher to insert code patches, which is a different program.

Here is a tutorial: https://bookstack.nsmbcentral.net/books/new-super-mario-bros/page/setting-up-code-modifications

Also what code patching method were you trying to use? (Such as Fireflower, NSMBe, NCPatcher)