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ENTITY my_entity IS PORT ( i: IN BIT ); END my_entity; ARCHITECTURE a OF my_entity IS SIGNAL s1: bit_vector(1 downto 0); BEGIN s1 <= "0" WHEN i = '1' ELSE "11"; END a;All the conditional waveforms in a Conditional Signal Assignment must have the same number of elements.
ACTION: Change the conditional waveforms so they all have the same number of elements. For the previous example, you can change the first conditional waveform so it has two elements.
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