Getting error "Could not start SUMO" while following Veins tutorial

Question

I'm fairly new to Omnet++ and I'm trying to follow the tutorial (https://veins.car2x.org/tutorial/) to set up Veins. I ran into an error at the final Step "Run the Veins demo scenario". Using SUMO 1.2.0 and Veins 4.7.1

I made sure that the Path variables are added correctly for SUMO and tested it's working by checking the SUMO version in cmd. I've also made sure that omnet++ itself is working properly by running other projects such as the tictoc example. However in the final step in the tutorial, when I try to launch the configuration, it starts listening on port 9999 as expected, but it never starts SUMO and I get the error below:

Could not start SUMO (C:/Users/user/Downloads/Sumo/bin/sumo-gui.exe -c erlangen.sumo.cfg): [Error 2] The system cannot find the file specified

I made sure that I'm running the command from the correct context where the erlangen.sumo.cfg file exists.

I have also ran the erlangen.sumo.cfg and it was loaded correctly.

What am I missing here? Appreciate your help.

/c/Users/maria/Downloads/veins-4.7.1/veins-veins-4.7.1/examples/veins$ sumo -c erlangen.sumo.cfg
Loading configuration... done.

/c/Users/maria/Downloads/veins-4.7.1/veins-veins-4.7.1/examples/veins$ /c/Users/maria/Downloads/veins-4.7.1/veins-veins-4.7.1/sumo-launchd.py -vv -c /c/Users/user/Downloads/Sumo/bin/sumo-gui.exe
Logging to c:/users/maria/appdata/local/temp/sumo-launchd.log
Listening on port 9999
Connection from 127.0.0.1 on port 64943
Handling connection from 127.0.0.1 on port 64943
Got TraCI message of length 2
Got TraCI command of length 1
Got TraCI command 0x0
Got CMD_GETVERSION
Got TraCI message of length 319
Got TraCI command of length 314
Got TraCI command 0x75
Got CMD_FILE_SEND for "sumo-launchd.launch.xml"
Got CMD_FILE_SEND with data "<launch>
  <copy file="erlangen.net.xml"/>
  <copy file="erlangen.rou.xml"/>
  <copy file="erlangen.poly.xml"/>
  <copy file="erlangen.sumo.cfg" type="config"/>
  <basedir path="C:/Users/maria/Downloads/veins-4.7.1/veins-veins-4.7.1/examples/veins/"/>
  <seed value="0"/>
</launch>
"
Creating temporary directory...
Temporary dir is c:/users/maria/appdata/local/temp/sumo-launchd-tmp-9wfgio
Base dir is C:/Users/maria/Downloads/veins-4.7.1/veins-veins-4.7.1/examples/veins/
Seed is 0
Finding free port number...
Claiming lock on port
...found port 64944
Starting SUMO (C:/Users/user/Downloads/Sumo/bin/sumo-gui.exe -c erlangen.sumo.cfg) on port 64944, seed 0
Releasing lock on port
Cleaning up
Result: "<?xml version="1.0"?>
<status>
        <exit-code>-1</exit-code>
        <start>1564500716</start>
        <end>1564500716</end>
        <status>Could not start SUMO (C:/Users/user/Downloads/Sumo/bin/sumo-gui.exe -c erlangen.sumo.cfg): [Error 2] The system cannot find the file specified</status>
        <stdout><![CDATA[]]></stdout>
        <stderr><![CDATA[]]></stderr>
</status>
"
Closing connection from 127.0.0.1 on port 64943

Answer 1

When I set up SUMO in any other path than C:\Users\user\src\sumo-0.32.0, it doesn't work.

So when I removed SUMO and downloaded it in that path, it resolved the issue.