Could not load pdf content

[aishu]

Dear Team,

I am using  Ubuntu 18.04.1 LTS OS and Alfresco Community Edition : 5.2 Version

I had setup qcad integration with alfresco,please refer following link

Alfresco QCAD Integration for CAD Files Preview | ContCentric 

But when upload and open .dwg file it showing Could not load pdf content error?

can u please suggest on this issue?

U had made same set up in windows OS it working but when i Set up in ubuntu its showing this error

Please refer screenshot of error 

Thanks.

[aishu]

Dear team 

can u help me on this error, i m stuck in this error

Thanks.