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Some data has already been output, can't send PDF file

Question asked by Sino Thomas on Nov 11, 2019
Latest reply on Nov 11, 2019 by Sino Thomas

Hello All,

 

When I am trying to download custom pdf from a custom module.The pdf download is blocking and showing this

[FATAL] TCPDF ERROR: Some data has already been output, can't send PDF file

error in Sugarcrm.log file

 

Anyone can help me to solve this issue.

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