没有找到关于此像素格式的信息 - WPF

I am trying to display an image in my code. I have given the location of the image i added in imagesource. This gives me the above error. But when i change the image file name to an already exiting image file in the image folder say file1.png, it works fine. what is it that i am doing wrong? i tried to add different files in this folder, all have issues except the exiting onesI am trying to display an image in my code. I h