Error with using singularity

[Haisuccess93]

Hello,

Whenever I run the testthat, I get this error, even if I create and direct the output to another output directory.
oining, by = "introns"
[ FAIL 1 | WARN 0 | SKIP 0 | PASS 1096 ]

Error in gzfile(file, mode) : cannot open the connection
Calls: ... o_apply -> lapply -> FUN -> -> saveRDS -> gzfile
In addition: Warning message:
In gzfile(file, mode) :
cannot open compressed file 'testthat-problems.rds', probable reason 'Read-only file system'
Execution halted
ade@ade:~/Isosceles$