Hello,
Esenthel worked perfectly until today I always get the error:
Clang: error: linker command failed with exit code 1:
How can I fix it?

Thank you!

Hi,

Please check the output carefully, looks like you have the same symbols defined multiple times.
Probably the same functions are defined multiple times.
I think the problem is you have 2 source code elements in your project, that define the same functions.