Forum OpenACS Development: One and the same package ETP - in one case and in the other runs no

Hello all,

I've had two installation OpenACS. Both of them have more or less similarity (use scripts from scratch):
- OpenaACS from HEAD
- tcl 8.6.4
- NaviServer - 4.99.0
- Arch Linux vs Ubuntu 15.04
- Package Edit This Page

It works without error on Arch Linux and doesn't work on Ubuntu. On Ubuntu I've gor the following error:
<-- Begin error
can't read "application_params(default)": no such variable
    while executing
"array set params $application_params(default)"
    (procedure "get_application_params" line 8)
    invoked from within
"get_application_params $app"
    (procedure "etp::get_application_param" line 2)
    invoked from within
"etp::get_application_param index_template"
    (file "/var/www/oacs-HEAD/packages/edit-this-page/www/index.vuh" line 30)
    invoked from within
"source [ad_conn file]"
    (procedure "rp_handle_tcl_request" line 3)
    invoked from within
"$handler"
    ("uplevel" body line 2)
    invoked from within
"uplevel $code"
    invoked from within
"ad_try {
                $handler
            } ad_script_abort val {
                # do nothing
            }"
    invoked from within
"rp_serve_concrete_file [ad_conn file]"
    (procedure "rp_serve_abstract_file" line 60)
    invoked from within
"rp_serve_abstract_file "$root/$extra_url""
    ("uplevel" body line 2)
    invoked from within
"uplevel $code"
    invoked from within
"ad_try {
                rp_serve_abstract_file "$root/$extra_url"
                set tcl_url2file([ad_conn url]) [ad_conn file]
                set ..."
<-- End error

I'm not sure that I need register bug because I maybe did some misconfiguration. Could you give your advice?

I've used NaviServer/4.99.8
i am not an etp expert, but from reading the code, i see, that "etp::get_application_param index_template" tries to retrieve a user defined template. From [1] i see that one has to define custom init files (like etp-custom-init.tcl) to set these parameters. Can it be, that you have not copied the custom parameter for etp between these two sites?

-g

[1] https://openacs.org/doc/tutorial-etp-templates