Hi @io_guy, I had to restart the RPi that is running NodeLink.  Normally it restarts automatically but today it didn't. I couldn't see a recent log file that might be catching an error.  I tried re-installing it which seemed to work but on closer inspection the data logger was not logging data.  So I tried an app restart using the button within the browser interface.  Now it won't restart...

Any suggestion for troubleshooting this?

 

Thank you.

Edited August 11, 20205 yr by tmorse305

Start it manually from the command line and see what the error is:

sudo dotnet /home/pi/node/NodeLink.dll

I see 2 errors.  It starts ok when started manually.  When I press the Restart button in the app, the error occurs as it closes, see 2nd screen shot.  The other is related to the DataLogger.  I noticed that the app hung when I tried to rotate the logging file.  So I deleted the Data Logger.  When I tried to add it back I got the second error, file access denied.  1st screen shot.

Edited August 11, 20205 yr by tmorse305

The restart within NodeLink isn't working well right now.  I need to fix it.  

The log error is because your startup script runs NodeLink as root which is what your log file was created as.  Now a reg user (pi) is trying to write to it.  Run NodeLink with sudo from the cmdline and you won't see it.  

Great, thank you for your help io_guy.  Back on line.