Bugs in Content pipeline tool from monogame version 3.6

I’ve created project, added png image, selected reach mode and compress and click rebuild. Application has shown “success icon” and after 1 second crash with this output:

Native stacktrace:

    mono() [0x4b1f6f]
    /lib/x86_64-linux-gnu/libpthread.so.0(+0x10330) [0x7f39f637a330]
    /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x37) [0x7f39f5dc5c37]
    /lib/x86_64-linux-gnu/libc.so.6(abort+0x148) [0x7f39f5dc9028]
    /lib/x86_64-linux-gnu/libglib-2.0.so.0(g_assertion_message+0x155) [0x7f39eb7a1165]
    /lib/x86_64-linux-gnu/libglib-2.0.so.0(g_assertion_message_expr+0x4a) [0x7f39eb7a11fa]
    /usr/lib/x86_64-linux-gnu/libgtk-3.so.0(+0x1fb818) [0x7f39f221f818]
    /usr/lib/x86_64-linux-gnu/libgtk-3.so.0(+0x2afefe) [0x7f39f22d3efe]
    /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_closure_invoke+0x138) [0x7f39eba4c3b8]
    /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(+0x21d3d) [0x7f39eba5dd3d]
    /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_signal_emit_valist+0xdd9) [0x7f39eba65a29]
    /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0(g_signal_emit+0x82) [0x7f39eba65ce2]
    /usr/lib/x86_64-linux-gnu/libgtk-3.so.0(+0x15e8e5) [0x7f39f21828e5]
    /usr/lib/x86_64-linux-gnu/libgtk-3.so.0(+0x15ea4e) [0x7f39f2182a4e]
    /usr/lib/x86_64-linux-gnu/libgtk-3.so.0(+0x15f052) [0x7f39f2183052]
    /usr/lib/x86_64-linux-gnu/libgtk-3.so.0(+0x16016e) [0x7f39f218416e]
    /usr/lib/x86_64-linux-gnu/libgtk-3.so.0(+0x1601cc) [0x7f39f21841cc]
    /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0(+0x808db) [0x7f39ebd0d8db]
    /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0(+0x808f9) [0x7f39ebd0d8f9]
    /lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x135) [0x7f39eb77cce5]
    /lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x49048) [0x7f39eb77d048]
    /lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_loop_run+0x6a) [0x7f39eb77d30a]
    /usr/lib/x86_64-linux-gnu/libgtk-3.so.0(gtk_main+0x85) [0x7f39f21c4e55]
    [0x41540bfa]

Debug info from gdb:

Could not attach to process. If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Дію заборонено.
No threads.

=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.

/usr/bin/monogame-pipeline-tool: рядок 2: 6521 Перервано mono /usr/lib/mono/xbuild/MonoGame/v3.0/Tools/Pipeline.exe “$@”

What Linux version and Mono version do you have installed?

linux mint 17.3 KDE, mono is

Mono JIT compiler version 4.8.0 (Stable 4.8.0.495/e4a3cf3 Wed Feb 22 18:30:58 UTC 2017)
Copyright © 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
TLS: __thread
SIGSEGV: altstack
Notifications: epoll
Architecture: amd64
Disabled: none
Misc: softdebug
LLVM: supported, not enabled.
GC: sgen

Can you PM me your .mgcb file?

I don’t understand you. What do you mean? Write me your email and I’ll send this file to you