Permission denied on RUN /opt/tools/entrypoint.sh built-in

[sfransen]

note It works fine on mac to build this but on ubuntu 18.0.4 it fails

trying to build this I get this error

Step 15/26 : RUN groupadd android && useradd -d /opt/android-sdk-linux -g android android
---> Running in e73532218720
Removing intermediate container e73532218720
---> db7d683cd8ff
Step 16/26 : COPY tools /opt/tools
---> 891616a56026
Step 17/26 : COPY licenses /opt/licenses
---> e0285627ff95
Step 18/26 : WORKDIR /opt/android-sdk-linux
---> Running in 21cf4d15aab8
Removing intermediate container 21cf4d15aab8
---> a7dcadd3f82e
Step 19/26 : RUN /opt/tools/entrypoint.sh built-in
---> Running in 7ae9d4110d2b

/opt/tools/android-sdk-update.sh: 1: /opt/tools/android-sdk-update.sh: /opt/tools/android-sdk-update.sh: Permission denied
The command '/bin/sh -c /opt/tools/entrypoint.sh built-in' returned a non-zero code: 126

How do I solve this error