Is it possible to copy the /data/mongodb directory that contains * .wt files and start a new MongoDB installation with this directory?

I wanted to try.. But I had errors during startup like :

WiredTiger error src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp 267
file:WiredTiger.wt, connection: This may be due to the database files being encrypted, being from an older version or due to corruption on disk
WT_PANIC: WiredTiger library panic
wt: encountered an illegal internal value

So solutions are to make a db.copy or a dump / restore?