# Troubleshooting

Problem 1 : What should I do if QATTS complains about Chrome Driver incompatibility.

![](/files/-MkvxjegvPVGLNo6c1ul)

Solution: 

1. Check the current version of Chrome browser
2. Download exact version of Chrome Web Driver
3. Stop the Agent if it is running at the moment
4. Go to Agent Setup --> drivers
5. Replace the chromedriver file with the downloaded chromedriver.
6. Restart Agent

Problem 2: What should I do if QATTS complains about missing WinAppDriver.exe

```
at com.ibaseit.testify.worker.TFWorkerThread.run(TFWorkerThread.java:48)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Cannot run program "C:\\Program Files (x86)\\Windows Application Driver\\WinAppDriver.exe": CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
at com.ibaseit.testify.core.drivers.TFWinAppDriver.launchDriver(TFWinAppDriver.java:71)
... 17 more
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(ProcessImpl.java:386)
```

Solution: QATTS uses WinAppDriver during file upload tasks. Check if this particular driver is available in the path. If not, you need to install it and restart your Agent if needed.


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