insuficent storage

[legend2869]

have a razr hd maxx. I flashed mokee lollipop rom and also tried it with exodus lollipop rom I get an error message saying storage is full but it shows I have 20.00 gbs of space left. I flashed mokee 4.4.4 and I don't get the error message. Do anyone know what could be causing that. I do all the wipes that is required for each rom.