upgrade failed after upgrade from 7.1 to 7.13

[M Balu]

Getting this message 'Invocation of method 'isShowSignUp' in class' after upgraded to 7.13.3. Here are the steps we did for upgrade

1. Installed 7.1.0 on new server

2. configured with new DB

3. export xml from old server

4. import xml on new server

5.upgraded to 7.13.3

6. getting exception during start up

[Daniel Ebers]

Because the question to troubling upgrade processes repeats recently in Community here more of a basic recommendation:
If your own staff gets stucks with migrated trained and skilled partners are available which are experienced in doing upgrades and complex migrations.
You can locate a partner near you from partner directory:
https://partnerdirectory.atlassian.com/

Regards,
Daniel

[M Balu]

@Brant Schroeder Thanks for the reply

we fixed this issue with below settings done

https://confluence.atlassian.com/confkb/warning-recovery-file-generation-failed-424315566.html

[Brant Schroeder]

@M Balu welcome to the Atlassian community 

Have you tried this yet to resolve your issue? https://confluence.atlassian.com/confkb/confluence-returns-system-error-due-to-invocation-of-method-isshowsignup-in-class-com-atlassian-confluence-user-actions-loginaction-threw-exception-java-lang-nullpointerexception-at-login-vm-693899125.html