synplify error: internal -error in m_altera.exe

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synplify error: internal -error in m_altera.exe

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Dear all,

today i used synplify to synthesis my design, selecting altera_place_and_route item in the rev1。 during the mapping stage of the synthesis, an error has occured ,and system noted that

' internal -error in m_altera.exe ' , i am very appreciate for you help:-P

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