Not working for me

This is explained in the the FAQ and is due to a limitation with WordPress that has nothing to do with Nav Menu Roles. 9 times out of 10 this problem is due to a conflict with your theme. The FAQ will walk you through how to patch it yourself, but preferentially you should contact the theme author (or plugin author in the case of a conflicting plugin) and request that they review the FAQ and patch it themselves. In the future, please consider asking for support before leaving poor reviews on plugins as most authors (or atleast myself) would like to help you solve whatever problem you’re facing.

Hello,

Thanks for your quick answer.
I agree with you and usually I ask for support before leaving poor reviews. In this case it happened to me every time I installed the plugin, for each theme I tried to. So I thought that it might be a incentive for you to improve the plugin and make it more “plug and play” as a plugin should be.
Reviews are here to allow users to leave their opinion about the plugin. I have been working with WordPress for three and a half year and I am used to leave 5 and 4 star reviews to the themes and plugin I find useful and solve my problems. This was not the case and as I said it was not only once.
Please consider to change the plugin so that it is more easy to install.

On the contrary, if I had to give a rating to the support this is another story. Your answer was quick and you gave me a solution, so I would have voted support better than the plugin itself for sure.

more “plug and play” as a plugin should be.

If you are using clean WP install it works right out of the box and with probably 90% of the millions of custom themes and plugins. As explained in the FAQ, there isn’t anything I can do if you are using a theme or another plugin that is also filtering the admin menu Walker. If you’ve changed the theme (try Twenty Sixteen too) then you might have a conflicting plugin. You can only ever have 1 Walker… that’s how WordPress itself works right now.

I’ve been advocating in trac for an improvement to this part of WordPress, but the related trac tickets (also linked to in the FAQ) have been open for 6 years. There’s isn’t much I can do about that. Until core is fixed, we’re stuck with this limitation.

Reviews are here to allow users to leave their opinion about the plugin.

Yes, but due to the core limitation on the Walker, your review is unfair because you have another theme/plugin that is preventing mine from working, not because mine simply doesn’t work. That’s why I have the patching instructions in the FAQ.