Why NIOS II SBT for Eclipse does not run?

Hi, Jaemin

For Quartus 19.1 onward, can you try not to open the Nios Eclipse tool from Quartus or Platform Designer.

Can you try to launch the Nios Eclipse standalone tool and load the .sopcinfo.

Below is for your reference.

https://www.intel.com/content/altera-www/global/en_us/index/support/support-resources/knowledge-base/tools/2019/why-does-the-nios--ii-not-installed-after-full-installation-of-t.html

Thanks.

Eric