[Android] ParanoidNemo:
getting this error

unable to load device-specific module; assuming none │cache miss 20691
using prebuilt recovery.img from BOOTABLE_IMAGES... │called for link 935
using system.img from target-files │called for preprocessing 26
Total of 258048 4096-byte output blocks in 1898 input chunks. │unsupported source language 696
Generating digraph... │no input file 276
Finding vertex sequence... │files in cache 64815
Reversing backward edges... │cache size 5.2 Gbytes
0/0 dependencies (0.00%) were violated; 0 source blocks stashed. │max cache size 25.0 Gbytes
Improving vertex order... ├────────────────────────────────────────────────────────────────────────────────────
Revising stash size... │Dimensione totale dei pacchetti da scaricare: 0,07 MiB
Total 0 blocks are packed as new blocks due to insufficient cache size. │Dimensione totale dei pacchetti da installare: 0,17 MiB
Reticulating splines... │
max stashed blocks: 0 (0 bytes), limit: 461373440 bytes (0.00%) │:: Vuoi procedere con l'installazione? [S/n]
│:: Download dei pacchetti in corso...
Traceback (most recent call last): │ htop-2.0.1-1-x86_64 70,4 KiB 71,5K/s 00:01 [##########################] 100%
File "./build/tools/releasetools/ota_from_target_files", line 1816, in <module> │(1/1) verifica delle chiavi presenti nel porta... [##########################] 100%
main(sys.argv[1:]) │(1/1) verifica dell'integrità dei pacchetti [##########################] 100%
File "./build/tools/releasetools/ota_from_target_files", line 1771, in main │(1/1) caricamento dei file dei pacchetti [##########################] 100%
WriteFullOTAPackage(input_zip, output_zip) │(1/1) controllo dei conflitti in corso [##########################] 100%
File "./build/tools/releasetools/ota_from_target_files", line 701, in WriteFullOTAP│(1/1) controllo dello spazio disponibile sul d... [##########################] 100%
ackage │:: Elaborazione delle modifiche al pacchetto...
system_diff.WriteScript(script, output_zip) │(1/1) installazione in corso di htop [##########################] 100%
File "/home/nemo/incubator/AOKP/build/tools/releasetools/common.py", line 1319, in │Dipendenze opzionali di htop
WriteScript │ lsof: show files opened by a process
self._WriteUpdate(script, output_zip) │ strace: attach to a running process
File "/home/nemo/incubator/AOKP/build/tools/releasetools/common.py", line 1396, in │:: Esecuzione degli hook di post-transazione...
_WriteUpdate │(1/2) Updating manpage index...
'{}.new.dat'.format(self.partition)) │(2/2) Updating the desktop file MIME type cache...
File "/home/nemo/incubator/AOKP/build/tools/releasetools/common.py", line 983, in Z│nemo@nautilus | htop | AOKP
ipWrite │nemo@nautilus | df | AOKP
zip_file.write(filename, arcname=arcname, compress_type=compress_type) │File system 1K-blocchi Usati Disponib. Uso% Montato su
File "/usr/lib64/python2.7/zipfile.py", line 1184, in write │dev 1982288 0 1982288 0% /dev
self.fp.write(buf) │run 1984900 976 1983924 1% /run
IOError: [Errno 28] No space left on device │/dev/sda7 47929224 7085444 38386028 16% /
make: *** [build/core/Makefile:1914: /home/nemo/incubator/AOKP/out/target/product/hua│tmpfs 1984900 916 1983984 1% /dev/shm
shan/aokp_huashan-ota-0cd5d27053.zip] Error 1 │tmpfs 1984900 0 1984900 0% /sys/fs/cgroup
make: uscita dalla directory "/home/nemo/incubator/AOKP" │tmpfs 1984900 824 1984076 1% /tmp
│/dev/sda2 262144 85404 176740 33% /boot
#### make failed to build some targets (04:02:52 (hh:mm:ss)) ####

when it try to create the zip file at the end of the build.

Obviusly it says the cache is full but doesn't seems so. How could I check better and fix this?