Encountering the error message “Error at position (line 1, column 2): The ‘html’ element is not declared” during the installation of Delta Executor can be frustrating, but there’s a simple solution to address the root cause.
⚠️ Important: This issue is specific to the Windows (PC) version of Delta Executor, typically occurring when running the deltainstaller.exe file. Users on Android or iOS are unlikely to experience this particular error.
This error is often caused by the deletion of Delta files, usually by antivirus software. Before proceeding, make sure your antivirus is temporarily disabled, then follow these steps:
How to Fix Error at Position (Line 1, Column 2): The ‘html’ Element is not Declared
Follow these steps:
Step 1: Navigate to the folder containing the installation files (e.g., if deltainstaller.exe is on your desktop, open your desktop folder). Locate a folder named “Delta” and delete it.
Step 2: After deleting the Delta folder, reopen the installer (deltainstaller.exe). The installation should now proceed without the previous error.
✅ Tip: If you’re still facing issues, make sure you’re using the latest version from the official Delta Executor Windows download page
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Why Does the “The ‘html’ Element is Not Declared” Error Appear During Installation?
This error usually occurs when essential installation files are missing or have been deleted. The “html” element referred to in the error message is a key component of the installation process. Deleting the Delta folder and relaunching the installer forces the system to regenerate the necessary files, resolving the issue.
To prevent similar issues in the future, add your installation files as exceptions in your antivirus software. This will stop them from being mistakenly flagged as threats and deleted.