As later add new images to my project ?

First sorry for my bad English, because I’m Brazilian but could not find anything in my language.

I am a beginner, I started using the program last night, but one thing that just can not and add new images to my projects, all are in png and simply are not recognized by gdevelop even his projects the same can not add another .

I do not know if esou doing something wrong or if possible and some bug, I’m using ubuntu 04.14 lts would be very grateful for any help. thank you

Here a picture of what is on when I add a picture of the project folder

Edit : Apparently this is a bug caused by the use of translation to Portuguese where gdevelop recognizes no picture, I moved to the other languages ​​and functions normally