--verbose option to get error details:
$ npm run e2e -- --runType android25 --verbose
Most of them provide error/warning and suggest an action.
Missing installed appium. To resolve it install appium globally.
npm i -g appium
- Misleading appPath or capabilities location. Please make sure that the path to the app or capabilities location is correct.
- Misleading details for device specified in appium config. If the plugin fails to find the emulator/simulator you have, check that the avd, platformName, deviceName or any other related capability is properly set.