Android SDK cannot be found by flutter

I was running with the same problem when I was trying the flutter doctor command:

The problem is a little clear, it’s occurring because the flutter is not founding the path for your Android SDK.

There are two ways to solve it:

• You can solve this issue setting only for your current terminal instance the SDK path with the following commands:

  flutter config --android-sdk /path/to/android/sdk

  flutter config --android-studio-dir /path/to/android/studio

• Or to save it forever, exporting the ANDROID_HOME with your Android sdk path.

I solved it by exporting the ANDROID_HOME on my machine (Arch Linux, but this works for any Unix instance).

This will solve your issue, But you can need the sdk, platform-tools, tools and the ndk-build paths too (of course, everything needs to be installed first) on my profile file (in my case the .zshrc file, the same can be done on your .bashrc and etc.):

#SDK exporting - this will solve your issue
export ANDROID_HOME=/home/{user}/Android/Sdk 

#Tools exporting - it can be need in your case
export PATH=/home/{user}/Android/Sdk/platform-tools:$PATH
export PATH=/home/{user}/Android/Sdk/tools:$PATH
export PATH=/home/{user}/Android/ndk-build:$PATH

#Flutter binary exporting
export PATH=/home/{user}/flutter/bin:$PATH

Then, I reloaded my profile file (that in my is the .zshrc file, use your file in your case .eg .bashrc):

source ~/.zshrc

After that, the flutter doctor will run properly.