Hi Chaparral,

I think that this is technically a new thread, and not really related to the problem at the start of the thread. You would probably get a better number of responses (and more helpful ones) if you started a new thread just for your problem. Anyway, from your error it looks like the build is failing during linking, which means that the compiler was probably able to find the headers but not the actual libraries (I think). You can get more information from Qt Creator if you look in the "compile output" section in the bottom frame of Qt Creator. I guess that for you it will be called something else (since you native language appears to be Spanish). For me it is the 4th button along the bottom of the bottom frame. From the top picture that you posted, it looks like you have the wrong version of gcc installed for your processor type, so you should probably check that too.

Hope that's some help!