If the FROM table ALSO have identity Column then what we do ?

I am Facing this Problem ..

SELECT IDENTITY(int, 1, 1) AS 'RowID',* ,ROW_NUMBER() OVER(PARTITION BY UID ORDER BY ID ) AS RN,ROW_NUMBER() OVER(PARTITION BY UID ORDER BY ID)-1 AS RNL

INTO #temp

FROM Temp1

RowId--->Identity IN #temp

ID------->Identity IN Temp1

Here Iam Getting The Error like

Msg 8108, Level 16, State 1, Line 3

Cannot add identity column, using the SELECT INTO statement, to table '#temp', which already has column 'ID' that inherits the identity property.