The “Block length does not match with its complement” Error In Power Query In Power BI And Excel Avoid the "Block length does not match with its complement" error in Power Query in Power BI and Excel Learn more Chris Webb's BI Blog Chris Webb's BI Blog A blog about Power BI, SQL Server Analysis Services (Multidimensional and Tabular), MDX, DAX, Power Pivot, Power Query, M, Power Map and Excel for BI Share post: