To work around this problem, download and install the Stratix V/Arria® V/Cyclone® V device patch 2.dp7 or later from the related solution below.
Article ID: 000080914 Content Type: Error Messages Last Reviewed: 03/11/2013
Internal Error: Sub-system: ASM, File: /quartus/comp/asm/asm_bit_connect.cpp, Line: 494
Quartus® II Subscription Edition
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Description Due to a problem in the Quartus® II software version 12.0 SP2 and earlier, this error may be seen during the Assembler stage when compiling a design targeting a Stratix® V device.