Flutter, set android SDK path in ubuntu - android-studio

Question

I was developing flutter apps from around 2 months everything worked perfectly fine, recently I don't remember what I changed in my .bashrc folder in ubuntu since then I am unable to run flutter projects. below is the flutter doctor -v info.
[✓] Flutter (Channel stable, v1.17.5, on Linux, locale en_IN)
• Flutter version 1.17.5 at /home/sai/flutter
• Framework revision 8af6b2f038 (7 weeks ago), 2020-06-30 12:53:55 -0700
• Engine revision ee76268252
• Dart version 2.8.4
[!] Android toolchain - develop for Android devices
• Android SDK at /usr/lib/android-sdk
✗ Unable to locate Android SDK.
Install Android Studio from: https://developer.android.com/studio/index.html
On first launch it will assist you in installing the Android SDK components.
(or visit https://flutter.dev/docs/get-started/install/linux#android-setup for detailed instructions).
If the Android SDK has been installed to a custom location, set ANDROID_HOME to that location.
You may also want to add it to your PATH environment variable.
• ANDROID_HOME = /home/sai/Android/sdk
• ANDROID_SDK_ROOT = /home/sai/Android/sdk
✗ No valid Android SDK platforms found in /usr/lib/android-sdk/platforms. Directory was empty.
• Try re-installing or updating your Android SDK,
visit https://flutter.dev/docs/get-started/install/linux#android-setup for detailed instructions.
[✓] Android Studio (version 4.0)
• Android Studio at /home/sai/Softwares/android-studio
• Flutter plugin version 47.1.2
• Dart plugin version 193.7361
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
[✓] VS Code (version 1.46.1)
• VS Code at /usr/share/code
• Flutter extension version 3.12.2
[✓] Connected device (1 available)
• Android SDK built for x86 • emulator-5554 • android-x86 • Android 10 (API 29) (emulator)
! Doctor found issues in 1 category.
Below is my .bashrc code
export PATH="$PATH:/home/sai/flutter/bin"
export PATH="$PATH:/home/sai/flutter/bin/cache/dart-sdk/bin"
export PATH="$PATH:/usr/lib/dart/bin"
export PATH=~/.flutterSetup/bin:$PATH
export ANDROID_HOME=/home/sai/Android/sdk
export ANDROID_SDK_ROOT=/home/sai/Android/sdk
export PATH=$PATH:$ANDROID_SDK_ROOT/tools:$ANDROID_SDK_ROOT/platform-tools
after replacing the above code with
export PATH="$PATH:/home/sai/flutter/bin"
export PATH="$PATH:/home/sai/flutter/bin/cache/dart-sdk/bin"
export PATH="$PATH:/usr/lib/dart/bin"
export PATH=~/.flutterSetup/bin:$PATH
export ANDROID_HOME = "$PATH:/usr/lib/android-sdk"
export ANDROID_SDK_ROOT = "$PATH:/usr/lib/android-sdk"
export PATH=$PATH:$ANDROID_SDK_ROOT/tools:$ANDROID_SDK_ROOT/platform-tools
This error is showed in the android studio terminal, while flutter doctor -v remained the same.
bash: export: `=': not a valid identifier
bash: export: `/home/sai/.flutterSetup/bin:/home/sai/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/lib/dart/bin:/home/sai/flutter/bin:/home/sai/flutter/bin/cache/dart-sdk/bin:/usr/lib/dart/bin:/usr/lib/android-sdk': not a valid identifier
bash: export: `=': not a valid identifier
bash: export: `/home/sai/.flutterSetup/bin:/home/sai/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/lib/dart/bin:/home/sai/flutter/bin:/home/sai/flutter/bin/cache/dart-sdk/bin:/usr/lib/dart/bin:/usr/lib/android-sdk': not a valid identifier

Answer 1

shell variable assignment must not have any space around = character. From your new .bashrc it have space around = character. Your old .bashrc doesn't, that's why it works fine.