Aria Automation cloud template canvas is empty due to YAML syntax error

Products

• VCF Automation

Issue/Introduction

When attempting to edit a cloud template in VMware Aria Automation, the canvas editor appears empty and a YAML error is displayed.

This prevents the visual drag-and-drop interface from loading correctly. You may see an error message: Please correct errors in YAML editor before editing in canvas: row: #, column: #

e.g.:

Environment

VMware Aria Automation 8.x

Cause

The cloud template contains invalid YAML characters which violates YAML formatting rules and prevents the parser from rendering the canvas.

Resolution

To restore the canvas editor functionality, you must manually correct the syntax in the Code panel:

1. Open the affected Cloud Template.

2. Switch to the Code tab.

3. Locate the line number indicated in the error message (Hint: the line numbers at the error message start at 0, while line numbers in the code editor start at 1)

4. Search for and remove any invalid characters, such as backticks (`).

5. Once the syntax is valid, the canvas editor will automatically refresh and display the resources.

Additional Information

Wikipedia.org - YAML Syntax