[erlang-bugs] Missing .app files in the OTP distribution

Kenneth Lundin <>
Tue Oct 7 21:42:09 CEST 2008


The reason is that common_test and test_server is not intended to be
included in a target system and we have never during
the last +10 years seen any use-case for doing that.

It is however no problem to include them in a target system using
interactive mode it is only when running the target system
in embedded mode it may be a problem that the .app files are missing.
Even in a target system in embedded mode there is no problem to
explicitly load the modules of common_test or test_server and start

Note also that common_test mostly is intended to be run in another
Erlang node than the system under test.

It may still be a good idea to create .app files for those
applications but I still think it would be strange to include them in
a target system.

/Kenneth Erlang/OTP team, Ericsson

On Tue, Oct 7, 2008 at 8:20 PM, Oscar Hellström
<> wrote:
> Hi,
> I've noticed that the common_test and test_server are missing .app files, making it a bit complicated to include them in your own target system. Is there any reason for this?
> Best regards
> --
> Oscar Hellström, 
> Phone:  +44 (0)798 45 44 773
> Mobile: +44 (0)207 65 50 337
> Web:    http://www.erlang-consulting.com
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