Couldn't find configuration property value for key ${mule.env} error

Question

I am new to Mulesoft and setting up my first Mulesoft project in Anypoint studio and seeing this error - Couldn't find configuration property value for key ${mule.env}

Can some one help me how to fix it?

Only solution mentioned in mulesoft website is to change the Run configuration. I changed it to some examples given and that didn't work. This is the current value under arguments in my Project's Run configuration

-M-XX:-UseBiasedLocking -M-Dfile.encoding=UTF-8 -M-XX:+UseG1GC -M-XX:+UseStringDeduplication

Answer 1

From the Anypoint Studio Run Configuration you can add the definition in the VM Arguments field as -M-Dmule.env=... or -Dmule.env=.... The -M is mandatory to define properties for Mule from the command line but it is optional in Studio.

When you are running a standalone Mule Runtime you can define the property in the conf/wrapper.conf by adding a line like:

wrapper.java.additional.NN=-Dmule.env=...

Note that NN should be a number that is not used in other definitions in the file.

In Runtime Manager manager in the Settings tab you can add the property by name (mule.env) and set its value in the UI.

For more options see the documentation: https://docs.mulesoft.com/mule-runtime/latest/configuring-properties