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Trying to @Override or @Overtake a Core function fails with "has the same method signature as that of Core...", even after only making an unrelated, small configuration change elsewhere in the same file.

Answer

Check the customized file for a leftover or duplicate method declaration/annotation line that conflicts with the Core method's own signature — removing a specific redundant line (distinct from whatever small change you intended to make) has resolved this exact class of signature-conflict error in practice; the error can appear to be about your intended change when the actual conflict is a separate, easy-to-miss line elsewhere in the same file.

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