[pgrouting-users] "procedure could not be found" when enabling pgRouting

David Lawrence Epstein davideps at tauex.tau.ac.il
Mon Dec 28 03:29:23 PST 2020

Hi Folks,

I would like to add pgRouting to an existing installation (PostgreSQL = 13.0 64-bit (build 1914) and PostGIS = 3.0). I backup up my database using pgdump and downloaded Winnie pgRouting Experimental Build pgrouting-pg96-binaries-3.0w64gcc81. I copied the folders to the existing installation and overwrote. After rebooting, PostgreSQL started again and my database works as before. Since I already have PostGIS enabled, I just issued "CREATE EXTENSION pgrouting;" in a pgadmin4 query window. I received this error:

ERROR:  could not load library "C:/Program Files/PostgreSQL/13/lib/libpgrouting-3.1.dll": The specified procedure could not be found. SQL state: 58P01

I see the file libpgrouting-3.1.dll in C:/Program Files/PostgreSQL/13/lib/. What procedure cannot be found? How can I enable pgRouting?

Thank you,
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