When I try to import a demo I get an error in chrome developer console like this:
VM1474:1 Uncaught SyntaxError: Unexpected token < in JSON at position 0
at JSON.parse (<anonymous>)
at Function.n.parseJSON (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.3.2:4)
at Function.a.parseJSON (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.3.2:8)
at Object.complete (demos.min.js?ver=1.0:1)
at i (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.3.2:2)
at Object.fireWith (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.3.2:2)
at x (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.3.2:4)
at XMLHttpRequest.c (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,utils,moxiejs,plupload&ver=5.3.2:4)
and VM1474 is like this:
<p><strong>Sorry, there has been an error.</strong><br />This does not appear to be a WXR file, missing/invalid WXR version number</p></div>
So the result (I don’t know of what) is not a JSON but an HTML, then the error occurs. How to fix it? I just want to get the exact build of the demo on my site. Thanks in advance.