nios2 eclipse an error has occurred.

[ScottShin]

I deleted my workspace file to recreated the project, but when I attempt to start up the Nios II IDE, I see the splash screen, then a small dialogue box appears, saying:

"An error has occurred. See the log file C:\User\user\.altera.sbt4e\18.1.0.625-windows64\configuration\1603861355640.log"

I  also reinstall quartus, but it didn't work.

(my environment: Quartus prime lite 18.1 windows10-64bit )

Hope any advice will appreciate.

[ScottShin]

Before got this problem, I already built the Nios2 software project successfully.

So I guess the problem is I deleted the project without close Eclipse.

[ScottShin]

Hope this message can help.

[ScottShin · Accepted solution]

finally, I solve the problem. I deleted all files with the name of ''Altera" in C:\User directory. And reinstalled Quartus prime18.1.