> For the complete documentation index, see [llms.txt](https://help.brickspacelab.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.brickspacelab.com/slab/guides/common-issues/block-displaying-empty.md).
# Block displaying empty
Some Slab blocks need a selected Shopify object before they can render any content in the theme editor. This is common with blocks that display a **product**, **collection**, **article**, or similar resource.
If no object has been selected yet, the block may appear empty or show a warning message instead.
## Why this happens
Some blocks are designed to pull content from a specific object. Until that object is selected, the block does not have any data to display.
Merchants may see a warning such as `Select a product to display.` in the theme editor. This message is only shown while setting up the block and will never be shown to customers on the storefront.
## How to fix it
If you see this warning:
1. Click into the block that is displaying the warning.
2. Look for the setting that controls the content source, such as **Product**, **Collection**, or **Article**.
3. Select the object you want that block to display.
Once the object is selected, the block should begin rendering normally in the theme editor.
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