Carousel Slide Error layout

Hello!

I’m developing a carousel with slides (amp-img + amp-fit-text), however it’s showing a error:
“Layout not supported: container. The element did not specify a layout attribute. Check https://www.ampproject.org/docs/guides/responsive/control_layout and the respective element documentation for details”
<amp-carousel class="i-amphtml-element i-amphtml-layout-container amp-carousel-slide i-amphtml-error" i-amphtml-layout="container"><div class="i-amphtml-scrollable-carousel-container"></div><div tabindex="0" class="amp-carousel-button amp-carousel-button-prev amp-disabled" role="presentation" title="Previous item in carousel" aria-disabled="true"></div><div tabindex="0" class="amp-carousel-button amp-carousel-button-next" role="presentation" title="Next item in carousel" aria-disabled="false"></div></amp-carousel>

I found out that inside the carousel, it’s rendering one more slide than it’s supposed to:

<div class="i-amphtml-slide-item">
<amp-carousel class="i-amphtml-element i-amphtml-layout-container amp-carousel-slide i-amphtml-error" i-amphtml-layout="container">
<div class="i-amphtml-scrollable-carousel-container"></div>
<div tabindex="0" class="amp-carousel-button amp-carousel-button-prev amp-disabled" role="presentation" title="Previous item in carousel" aria-disabled="true"></div>
<div tabindex="0" class="amp-carousel-button amp-carousel-button-next" role="presentation" title="Next item in carousel" aria-disabled="false">
</div>
</amp-carousel>
</div>

this is my code:

 <amp-carousel class="carousel1" layout="responsive" height="450" width="500"  type="slides" controls loop >
                <?php while (have_rows('repeater')) : the_row(); ?>
                    <div class="slide">
                        <amp-img src="<?php echo $img; ?>" alt="alt" width="50" height="50" layout="responsive" class="img-svg img-responsive"></amp-img>
                        <amp-fit-text layout="responsive"
                            width="500"
                            height="150">
                            <p>
                                <?php echo text; ?>
                            </p>
                        </amp-fit-text>
                    </div>
                <?php endwhile; ?>  
            <amp-carousel>

Am I doing something wrong?
Thank you in advance!