Qt Assistant Opens Empty when -collectionFile is used
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To create an on-line help system for my application, I have created a Qt help collection file for my application using a third-party application.
When I start Assistant from within my application using -collectionFile myapp.qhc, Assistant opens with a blank page.
I have cleared the cache.
Qt 5.15.2.
I included a full path to the qhc file; still get a blank page.
Where should I put my .qhc file?
Do I have to register it?
Why do I get a blank page?