Hi,
Looks like something goes wrong with the scripts in new projects. An empty script tag is added which causes this problem.
<script src="https://code.jquery.com/jquery-3.5.1.min.js" type="text/javascript"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/2.10.377/pdf.min.js" type="text/javascript"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/2.10.377/pdf.worker.min.js" type="text/javascript"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/2.10.377/pdf_viewer.min.js" type="text/javascript"></script>
<script src="" type="text/javascript"></script> <!--This here-->
<script src="$(ProjectName).js" type="text/javascript"></script>
We'll look for a fix but in the meantime can you check if you also have this empty script tag? Is your project working after removing it?