CAUSE: | You manually edited the Compiler Settings File (.csf), and selected the specified default I/O standard for the current project, but the Quartus II software does not support the I/O standard for the selected device family. |
ACTION: | Change the I/O standard for the device family. Altera recommends using the Voltage tab of the Device & Pin Options dialog box to specify the I/O standard, rather than manually editing the CSF. |
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