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Error: Can't place node "clkIn" -- node has differential I/O pin pair inconsistencies

Altera_Forum
Honored Contributor II
‎04-07-2011 09:27 PM
1,242 Views

Hi, 

 

I am trying to assign my input clock an I/O standard of LVDS. and I get the following error: 

 

'Can't place node "clkIn" -- node has differential I/O pin pair inconsistencies.' 

 

Also, I get a critical warning just before the error, 'Unable to update property "I/O Standard" of node "clkIn". 

 

Anyone have any idea?
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