Summary - Flutter setup
- Flutter course
- Beginner
- Lesson 5/99
- 4 min
Combine SDK install and doctor output to set up a ready dev environment.
Setup summary
A working Flutter environment comes down to three steps: download the SDK and add its bin directory to PATH, restart the terminal and run flutter doctor to fix missing dependencies. Keep installing tools like Android Studio or Xcode until doctor reports a clean [✓].
# Summary flow
export PATH="$PATH:$HOME/flutter/bin"
flutter --version
flutter doctorPractice Check if ready
Write a function hazirMi that takes three bool params (sdk, path, doctor). If all three are true return 'hazir', otherwise 'beklemede'. In main, call hazirMi(true, true, true) and print the result.
Starter code
void main() {
// hazirMi fonksiyonunu çağır ve print et
}
// hazirMi fonksiyonunu buraya tanımla
// üç bool parametre alsın
// hepsi true ise "hazir", değilse "beklemede" döndürsünSample solution
void main() {
print(hazirMi(true, true, true));
}
String hazirMi(bool sdk, bool path, bool doctor) {
if (sdk && path && doctor) {
return 'hazir';
}
return 'beklemede';
}Expected output
hazir
Questions and answers
Review the lesson questions together with their answers. To test yourself, solve the lesson interactively.
1 flutter doctor reports a [!] warning. What should you do?
- Re-download Flutter
- Delete PATH
- Recompile Dart
- Install the tool in the warning or read the suggestion and fix the issue Correct answer
Explanation: Doctor [!] indicates an issue with a tool; you must install it or follow the suggested fix.
2 Make PATH permanent
echo 'export PATH="$PATH:$HOME/flutter/____"' >> ~/.bashrcecho 'export PATH="$PATH:$HOME/flutter/bin"' >> ~/.bashrcExplanation: Flutter executables live in the bin directory.
3 Setup combined
| Term | Meaning |
|---|---|
PATH |
Lets the command run from any directory |
flutter --version |
Verifies the SDK is installed |
flutter doctor |
Checks dependencies |
Android Studio / Xcode |
Mobile platform tools |