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How do I fix the error code HLS:4?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

Error code hls:4 means that the video you are trying to play is not compatible with the device you are using. This can happen for a number of reasons, but most likely it is because the video is not encoded in a format that your device can understand.

1. hls:4 indicates that your manifest is invalid or not well-formed

  1. Check to make sure your manifest is well-formed. manifest should have a main element and one or more content elements.
  2. If your manifest is not well-formed, fix the errors.
  3. Add a main element to your manifest.
  4. Add one or more content elements to your manifest.
  5. Add the necessary MIME types to your content elements.
  6. Add a manifest attribute to each content element.
  7. Add a hls:4 error code to your manifest.
  8. Add a description to your manifest.

2. Use a validator tool to check your manifest for any errors

  1. Download and install a validator tool.
  2. Open the validator tool and enter the manifest URL.
  3. Use the validator tool to check the manifest for any errors.
  4. If there are any errors, fix them and re-submit the manifest.

3. Make sure that all required fields are present in your manifest, and that there are no extra fields

  1. Open the manifest file in a text editor.
  2. Locate the line that begins with "applicationId" and end with "applicationId".
  3. Remove the empty space before "applicationId".
  4. Replace the "applicationId" with the unique identifier for your app.
  5. Save the manifest file.
  6. Open the "AndroidManifest.xml" file in a text editor.
  7. Locate the line that begins with "applicationId" and end with "applicationId".
  8. Replace the "applicationId" with the unique identifier for your app.
  9. Save the file.

4. If you are using any custom tags, make sure that they are properly formatted and enclosed in angle brackets (< and >)

  1. Verify that the custom tags are properly formatted and enclosed in angle brackets (< and >).
  2. If the tags are not properly formatted, the error code will be hls:4010.

5. If you are using any special characters in your manifest, make sure that they are properly escaped

In order to properly escape any special characters in your manifest, you will need to use the backslash () character as your escape character. For example, if you are using the character "Î", you would need to escape it as "". Additionally, you will need to make sure that any spaces that are included in the manifest are also properly escaped.

6. Make sure that your manifest is being served with the correct content-type header (application/x-mpegURL for .m3u8 files, or application/dash+xml for .mpd files)

To ensure that your manifest is being served with the correct content-type header (application/x-mpegURL for .m3u8 files, or application/dash+xml for .mpd files), you can use the following steps:

  1. In your web browser, navigate to the URL of the manifest file that you want to fix.
  2. In the address bar, type "http://" followed by the address of the manifest file.
  3. In the "Referer" field, type the URL of the web page from which you loaded the manifest file.
  4. In the "Content-Type" field, type "application/x-mpegURL" or "application/dash+xml".
  5. Click "OK."
  6. If the manifest file is successfully served with the correct content-type header, the "Content-Type" field in your web browser should display "application/x-mpegURL" or "application/dash+xml", as appropriate.

Some users might also have success with the following opitons:

  1. If you are using encryption, make sure that your keys are valid and that you are using the correct IV (initialization vector).