Samuel,
Perhaps you could include a clearer description of what you are trying to achieve and the code you are using to do that?
Is there anything else in your browser console?
Joe
Hi Samuel,
Looking at the error it seems that Mendix is trying to find the file jsx-runtime.js in your project directory. Can you tell (or show) us how you tried to import it?
Please take also a look at https://forum.mendix.com/link/questions/112296
(There is currently no solution. But maybe it’s helpful anyway.)