we do not see the icons not when we want to publish on axure why? I have installed in the library all the icons but when I publish on axure I see squares
Hmm, does the widget library use some font-based glyphs? If the icons are font based, then you might need to include some web font information when publishing the project to ensure that the font is able to be accessed as the project page loads.
You can learn about more about web fonts in Axure RP here. Hopefully that helps!