No build tools found


Using Ionic v4, we are building an app with some API post requests to a external source. All posts work and now we want to build our app. We get stuck with the ‘no build tools found’ message.
We double (even triple) checked and we do have the build tools installed.

Could there be any other bug preventing the build?

I’m thinking perhaps the variable path is incorrect. I’ve got the following in my bash file:
export ANDROID_HOME=/Library/Android/sdk
export PATH=$ANDROID_HOME/platform-tools:$PATH

Just now I did notice that, inside the Android SDK Manager, under ‘path variables’, there is only one option, called KOTLIN_BUNDLED.
Should I add the paths to the tools, build-tools and platform-tools there also?