The first one is because you actually have a file called Icon in your project folder with no extension. Apple is trying to make use of this. I haven’t tracked down what’s creating it, but I’ve seen several people report it. One forum posted that they thought Glider (the IDE) might be creating it. You will likely need to open a terminal session and use command line commands to get into your folder, use the “ls” command to find it and the “rm” command to remove it. For the one project someone sent me we we were first trying to figure this error out, I actually used Sublime Text’s file list to right-click and Delete the file.
Now for the missing 152x152 I’m not sure what to say unless you don’t really have a 152x152 in the folder or it has a file name case mismatch.
Rob