# Check NATUSER enry in installation assignmnets of local configuration - startup error 26 **URL:** \ **Category:** Forum\ **Tags:** Adabas-Natural, Natural, Natural-on-Linux, Natural-Installation-and-Setup-on-Open-Systems\ **Created:** [May 14, 2020, 9:30am UTC](https://techcommunity.softwareag.com/t/check-natuser-enry-in-installation-assignmnets-of-local-configuration-startup-error-26/208260 "2020-05-14T09:30:16Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![larry\_ochs](https://avatars.discourse-cdn.com/v4/letter/l/e19b73/32.png) [@larry\_ochs](https://techcommunity.softwareag.com/u/larry_ochs)\ **Post date:** [May 14, 2020, 9:30am UTC](https://techcommunity.softwareag.com/t/check-natuser-enry-in-installation-assignmnets-of-local-configuration-startup-error-26/208260/1 "2020-05-14T09:30:16Z")
Hello, we are working on an upgrade from Natural 6.3.8 Adabas 61602 to Natural 9.1 Adabas 6.7 on Unix. Our existing application uses a userexit that we compiled previously using makedyn. We call it mapexit.sl. Now in our new environment, we use the included modules in sysexuex and follow the instructions provided: make -f Makedyn lib I am expecting that an object is created that we can use in our NATUSER setting. There are many objects in the sysexuex library for example natuser.h However, I have no clue what object (provided or compiled) to use in our start up script. All we get now is: Natural v 9.1.1 Natural Starup Error : 26 Error loading shared libary: Check NATUSER entry in installation assignments of local configuration file. Any assistance appreciated [sagdbn2\_status\_attempts.docx](https://techcommunity.softwareag.com/uploads/short-url/tXAJS1ujN37ELufgxOcZzvUt9od.docx) (349 KB) ---
**Author:** ![larry\_ochs](https://avatars.discourse-cdn.com/v4/letter/l/e19b73/32.png) [@larry\_ochs](https://techcommunity.softwareag.com/u/larry_ochs)\ **Post date:** [May 18, 2020, 8:55am UTC](https://techcommunity.softwareag.com/t/check-natuser-enry-in-installation-assignmnets-of-local-configuration-startup-error-26/208260/2 "2020-05-18T08:55:59Z")
Hi, I am replying to my own thread with additional information. I am still stuck with the error Natural Startup Error : 26 I used the out of the box Makedyn. It generated userlib.so. The command is make -f Makedyn lib It generates userlib.so. I used that in our Natural startup and cannot get around the error. This is on Unix and I checked the permissions. What causes this issue with Natural Startup Error 26? I have all the screen shots through the process in the attached. Thanks for any guidance [Error\_loading\_shared\_library\_writeup2.docx](https://techcommunity.softwareag.com/uploads/short-url/qws3pniLQJShFDyvKrXaEmSporj.docx) (199 KB) ---
**Author:** ![Ralph\_Zbrog](https://sea1.discourse-cdn.com/techcommunity/user_avatar/techcommunity.softwareag.com/ralph_zbrog/32/78_2.png) [@Ralph\_Zbrog](https://techcommunity.softwareag.com/u/Ralph_Zbrog)\ **Post date:** [May 18, 2020, 4:52pm UTC](https://techcommunity.softwareag.com/t/check-natuser-enry-in-installation-assignmnets-of-local-configuration-startup-error-26/208260/3 "2020-05-18T16:52:27Z")
I have seen this once before, but I don’t have a working example that I can reference. I think you should look at the User-defined libraries parameter in the Configuration Utility. ![userdefined-lib.png](https://global.discourse-cdn.com/techcommunity/original/2X/1/14a62322421895ef5fb46107d372948047e84a68.png) ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [April 2, 2021, 3:44pm UTC](https://techcommunity.softwareag.com/t/check-natuser-enry-in-installation-assignmnets-of-local-configuration-startup-error-26/208260/4 "2021-04-02T15:44:40Z")