There is an issue of BioStar2 v2.4.1 for T&A users&user group.

If you should upgrade your system from the previous version less than v2.4.1  to recent version of Biostar 2 more than 2.4.1, you should consider the below procedure after upgrading progress.

(How to Upgrade Biostar2 Server)

Relevant problem

1) Can't update a report for user group 

2) Can't see user group to TA menu

How to resolve 


1) Stop BioStar2 TA Server only




2) Run MySQLWorkbench and access BioStar2 TA DB 

3) Find uguser table and run the query below

select * from uguser;

4) Choose all data of uguser table and delete the rows and then, click [Apply]



5) Confirm the table if the data is properly deleted


6) Run the below query and see systemsetting table

select * from systemsetting;

7) Right click on last_udt_ver_for_user_sync and click [Set Field to NULL] and then, click [Apply]



8) Go to C:\Program Files\BioStar 2(x64)\ta\dist\apps\server\models and make a backup file for user.js file

9) Download the user-edited.js file from the below link and modify the file name as user.js

user-edited.js → After downloading from the below link MUST change the file name to user.js


10) Copy the file to C:\Program Files\BioStar 2(x64)\ta\dist\apps\server\models


11) Start BioStar2 TA Server


12) Wait till the AC user and TA user are synchronized 

To check the status, run the below query. 

select count(*) from  uguser

The number of data will be increased.



13) Stop Biostar2 TA Server again


14) Go  to C:\Program Files\BioStar 2(x64)\ta\dist\apps\server\models


15) Delete the user.js file and restore the original user.js file


16) Start BioStar2 TA server