could not access file "$libdir/libpgrouting-2.5"

db_1 | 2018-07-03 15:01:31.624 UTC [31] STATEMENT: CREATE EXTENSION pgrouting
db_1 | 2018-07-03 15:01:42.165 UTC [31] ERROR: could not access file "$libdir/libpgrouting-2.5": No such file or directory
db_1 | 2018-07-03 15:01:42.165 UTC [31] CONTEXT: SQL function "pgr_bddijkstra" statement 1

now i use this,please fix it:
docker exec -it bash:
ln -s usr/lib/postgresql/10/lib/libpgrouting-2.6.so usr/lib/postgresql/10/lib/libpgrouting-2.5.so