Error during creation of data base New Install of 10.2.300, DemoDB

Doing a new install of 10.2.300, and when trying to create the Demo DB, I get the following:


(and the text of the error, should someone search for that:

Error Generating the Data Models: Could not load file or assembly 'System.IO.Compression, Version=4.2.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified.

I tried clicking the Start button again to see if it would execute task 3000. But get the same exact thing.

I ran the Update for 10.2.300.18 prior to creating the DB.

Should I have pointed the Deployment server to

C:\Epicor\ERP10\ERP10.2.300.0

OR

C:\Epicor\ERP10\ERP10.2.300.0\Updates\ERP10.2.300.18

??

Calvin - I’m doing the 10.2.400 on my DEV box right now as well…

Deployment server is the first option - do not include the update folder.

As for the other error - what’s the OS of the server? I’m thinking you might not have the .Net 4.7.x version loaded up that is a pre-req for 10.2.x versions…

A-HA!!! Not sure how I missed that.

EDIT

Hmmm … the Installation guide only mentions 4.7.2 being required on the SQL server …

Yes, so that would be a minimum version depending on whether Microsoft has released any additional patches to .Net like 4.7.3… as .Net is to be completely backwards compatible…

I’m setting this up as two servers. One as the App server, and one to host SQL. The first mention of 4.7.2 is

2.7 Verify SQL Server Reporting Services (SSRS) Prerequisites
…
2.7.3. Verify that .NET Framework 4.7.2 or later is installed on the server where Epicor SQL Server Reporting will be installed.

I think if you look in the sections above that for the appserver roles, you’ll also see .NET specified there… Looking at the 10.2.300 New Install Guide, I’m seeing it on pages 19 or 21 depending on OS, plus page 22 for SSRS. Now, this guide calls out 4.5.x and 4.6.x, so I have misquoted above, but I think I solved the same issue with Data Model regen by installing the 4.7.x version…

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Calvin - did the .Net install fix the Data Regen problem? I see you marked it as a solution, but your follow-up comments/questions make me wonder… :slight_smile: If not, you should also check the other posts here for solutions as there are quite a few with regards to errors during Data Model Regen.

Installing .NET 4.7.2 solved the problem. I just got a little defensive about having missed that requirement.

Now a big question … Since Adding a new DB doesn’t run that step, I was able to add New DB before installing 4.7.2,

Should I remove that new DB (that was added prior to the 4.7.2 install) and then re-install it?

:slight_smile: I KNOW what you mean… I just did the UK CSF install and I missed a critical step that was outlined on a post two weeks ago by Haso - that I even replied too. I should NOT have missed that one. I get frustrated when I miss the little things that cause such big headaches.

No - I don’t think so…but others may have more insight than I do. Sorry I cannot be more definitive.
Registering an existing DB is (as far as I know) just establishes the Admin Console’s settings for that DB (db name, sql server name, auth, etc.). It isn’t until you specifically run the Regen, or the Upgrade Your DB option, that the Data model get’s regenerated.

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