Thread: [Cppcms-users] web does not display

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Hi,

I compiled the source code with clang++ under FreeBSD 11.
I generated skin in library form: libcpp_defskin.so
This is the content of the config.json:

> {
>
>   "Website" : {
>
>     "root" : "",
>
>     "host" : "localhost:8080",
>
>     "locdomain" : "localhost"
>
>   },
>
>   "service" : {
>
>     "api" : "http",
>
>     "port" : 8080
>
>   },
>
>   "http" : {
>
>     "script" : "/mb.fcgi",
>
>     "rewrite" : [
>
>       { "regex" : "/assets(/.+)", "pattern" : "$1" },
>
>       { "regex" : ".*", "pattern" : "/mb.fcgi$0" }
>
>     ]
>
>   },
>
>   "views" : {
>
>     "default_skin" : "defskin",
>
>     "paths" : [ "./" ],
>
>     "skins" : [ "cpp_defskin" ]
>
>   },
>
>   "file_server" : {
>
>     "enable" : true,
>
>     "listing" : true,
>
>     "document_root" : "./assets"
>
>   }
>
> }
>
>  When I tried to load the app: ./WebApp -c config.js, it has this error:

2018-05-01 19:18:53; cppcms, error: Caught exception
> [cppcms::views::generator: an attempt to use content of invalid type]
> 0x800c9ca86: booster::stack_trace::trace(void**, int) + 0x26 in
> /usr/local/lib/libbooster.so.0
> 0x8009096c1: booster::backtrace::backtrace(unsigned long) + 0x61 in
> /usr/local/lib/libcppcms.so.1
> 0x80380b7a6:
> booster::runtime_error::runtime_error(std::__1::basic_string<char,
> booster::runtime_error::runtime_error::char_traits<char>,
> booster::runtime_error::runtime_error::allocator<char> > const&) + 0x46 in
> .//libcpp_defskin.so
> 0x803809af7:
> cppcms::cppcms_error::cppcms_error(std::__1::basic_string<char,
> cppcms::cppcms_error::cppcms_error::char_traits<char>,
> cppcms::cppcms_error::cppcms_error::allocator<char> > const&) + 0x27 in
> .//libcpp_defskin.so
> 0x80380de2b: std::__1::auto_ptr<cppcms::base_view>
> cppcms::views::generator::view_builder<defskin::Index,
> Content::Index>(cppcms::views::generator::view_builder<defskin::Index,
> Content::Index>::basic_ostream<char,
> cppcms::views::generator::view_builder<defskin::Index,
> Content::Index>::char_traits<char> >&, cppcms::base_content*) + 0x5eb in
> .//libcpp_defskin.so
> 0x800948b51: cppcms::views::pool::create_view(std::__1::basic_string<char,
> cppcms::views::pool::create_view::char_traits<char>,
> cppcms::views::pool::create_view::allocator<char> > const&,
> std::__1::basic_string<char,
> cppcms::views::pool::create_view::char_traits<char>,
> cppcms::views::pool::create_view::allocator<char> > const,
> cppcms::views::pool::create_view::basic_ostream<char,
> cppcms::views::pool::create_view::char_traits>&, cppcms::base_content&) +
> 0x81 in /usr/local/lib/libcppcms.so.1
> 0x80094919d: cppcms::views::pool::render(std::__1::basic_string<char,
> cppcms::views::pool::render::char_traits<char>,
> cppcms::views::pool::render::allocator<char> > const&,
> std::__1::basic_string<char,
> cppcms::views::pool::render::char_traits<char>,
> cppcms::views::pool::render::allocator<char> > const,
> cppcms::views::pool::render::basic_ostream<char,
> cppcms::views::pool::render::char_traits>&, cppcms::base_content&) + 0x3d
> in /usr/local/lib/libcppcms.so.1
> 0x800930469: cppcms::application::render(std::__1::basic_string<char,
> cppcms::application::render::char_traits<char>,
> cppcms::application::render::allocator<char> >, cppcms::base_content&) +
> 0x89 in /usr/local/lib/libcppcms.so.1
> 0x4173f6: ??? + 0x4173f6 in /usr/home/eric/www/eric_jansen_id/output/WebApp
> 0x43e4d2: ??? + 0x43e4d2 in /usr/home/eric/www/eric_jansen_id/output/WebApp
> 0x43e2d5: ??? + 0x43e2d5 in /usr/home/eric/www/eric_jansen_id/output/WebApp
> 0x80093a850: booster::function<void()(std::__1::basic_string<char,
> std::__1::char_traits<char>, std::__1::allocator<char>
> >)>::operator()(std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >) const + 0x30 in /usr/local/lib/libcppcms.so.1
> 0x800937206: cppcms::url_dispatcher::setup_stream(cppcms::application&,
> std::__1::basic_istream<char, cppcms::application&::char_traits<char> >&) +
> 0xd36 in /usr/local/lib/libcppcms.so.1
> 0x800932be0: cppcms::url_dispatcher::dispatch(std::__1::basic_string<char,
> cppcms::url_dispatcher::dispatch::char_traits<char>,
> cppcms::url_dispatcher::dispatch::allocator<char> >) + 0xd0 in
> /usr/local/lib/libcppcms.so.1
> 0x80093014f: cppcms::application::main(std::__1::basic_string<char,
> cppcms::application::main::char_traits<char>,
> cppcms::application::main::allocator<char> >) + 0x2f in
> /usr/local/lib/libcppcms.so.1
> 0x408101: ??? + 0x408101 in /usr/home/eric/www/eric_jansen_id/output/WebApp
> 0x800928ce1:
> cppcms::http::context::dispatch(booster::intrusive_ptr<cppcms::application>
> const&, std::__1::basic_string<char,
> booster::intrusive_ptr<cppcms::application> const&::char_traits<char>,
> booster::intrusive_ptr<cppcms::application> const&::allocator<char> >
> const&, bool) + 0x1b1 in /usr/local/lib/libcppcms.so.1
> 0x8009291f9:
> cppcms::http::context::dispatch(booster::shared_ptr<cppcms::application_specific_pool>
> const&, booster<cppcms::http::context> const&, std::__1::basic_string<char,
> booster<cppcms::http::context> const&::char_traits<char>,
> booster<cppcms::http::context> const&::allocator<char> > const&) + 0x99 in
> /usr/local/lib/libcppcms.so.1
> 0x80092bc05: cppcms::impl::thread_pool::worker(void) + 0xd5 in
> /usr/local/lib/libcppcms.so.1
> 0x800ce7b1a: bool + 0x1a in /usr/local/lib/libbooster.so.0
> 0x80228abc5: operator-> + 0x925 in /lib/libthr.so.3
>  (http_context.cpp:336)

What could be the solution?
Thank you

*ERIC JANSEN*
C/C++ Software Engineer

Thread: [Cppcms-users] web does not display

cppcms-users