Could not find adb Please set the ANDROID_HOME environment variable with the Android SDK root directory path

hi i am trying to test with appium on android it works on ipad but we do hybrid apps so we also have to run tests but even though i set my bash it does not show and when i export i get nothing this how my bash looks like

export ANDROID_HOME=/Users/{}/Library/Android/sdk
export PATH=$ANDROID_HOME/platform-tools:$PATH
export PATH=$ANDROID_HOME/tools:$PATH
exprot PATH=$ANDROID_HOME/build-tools:$PATH

this is the error i get

An unknown server-side error occurred while processing the command. Original error: Could not find adb Please set the ANDROID_HOME environment variable with the Android SDK root directory path. can some help me with this

Your line:
export ANDROID_HOME=/Users/{}/Library/Android/sdk

Hopefully you replaced your username with the curly braces {}?

At a terminal prompt, try this:
which adb

It should give you something like so:
/Users/davstew/Library/Android/sdk/platform-tools/adb

And this command:
adb version

Should give you details like so:
Android Debug Bridge version 1.0.39
Revision 3db08f2c6889-android
Installed as /Users/davstew/Library/Android/sdk/platform-tools/adb

Although no one ever says so in the original problem, it almost always turns out to be a problem with Eclipse:

no both have not worked when i try to export and see the variables i don’t see them in the exported list