Hi Mervyn, I'm guessing you're on Windows judging by the "Program Files(x86)" - is it Win 7 or 10 ?
What version of Gnucash were you running before this started happening and what version are you trying to upgrade to? If you google "procedure entry point inflateValidate could not be located in the dynamic link library C:\Program Files (x86)\gnucash\bin\libpng16-16.dll" you'll see there are a few results from 2018/2019 which seem to point to issues with version 3.3 & 3.4 on Win 7. If you look at https://lists.gnucash.org/pipermail/gnucash-user/2018-June/077629.html (or http://gnucash.1415818.n4.nabble.com/GNC-inflatevalidate-td4701002.html if you prefer Nabble) the solution was to manually uninstall the currently installed version and then install the new version. Then the user had to use File >> Open in the newly installed version to re-open their Gnucash data file. See the following snippet.... >* I just re-installed Windows 10 on a Dell Inspiron 560 computer. When I *>* re-setup GnuCash 3.1 and tried to open the program, I got the following *>* error message: *>* The procedure entry point inflateValidate could not be located in the *>* dynamic link library C:\Program Files (x86)\gnucash\bin\libpng16-16.dll *>>* What do I do now? *>* Since I sent the above message to you, I found on the Internet a *>* suggestion to delete GnuCash from the Program Files(x86) and Uninstall *>* it from the Control Panel. I did that and then re-installed version *>* 3.1. Now the program seems to open just fine (no error message), but it *>* has no data! How can I get my data back -- or can I? * Use File > Open and browse to wherever you saved your accounts file when you first saved it (which will probably be called something.gnucash) and open it. Cheers David H. On Tue, 13 Oct 2020 at 21:21, mervyn cowdrey <mervyn_cowd...@hotmail.com> wrote: > Having uploaded the new version I find I cannot access my financial data. > > An error message occurs: > > The procedure entry point inflateValidate could not be located in the > dynamic link library. C|Program Files (x86)\gnucash\bin\libpng16-16.dll. > > I have reloaded a couple of times but the same error occurs. > > Can anyone help please? > > Regards > > Mervyn Cowdrey > _______________________________________________ > gnucash-user mailing list > gnucash-user@gnucash.org > To update your subscription preferences or to unsubscribe: > https://lists.gnucash.org/mailman/listinfo/gnucash-user > If you are using Nabble or Gmane, please see > https://wiki.gnucash.org/wiki/Mailing_Lists for more information. > ----- > Please remember to CC this list on all your replies. > You can do this by using Reply-To-List or Reply-All. > _______________________________________________ gnucash-user mailing list gnucash-user@gnucash.org To update your subscription preferences or to unsubscribe: https://lists.gnucash.org/mailman/listinfo/gnucash-user If you are using Nabble or Gmane, please see https://wiki.gnucash.org/wiki/Mailing_Lists for more information. ----- Please remember to CC this list on all your replies. You can do this by using Reply-To-List or Reply-All.