Solved - Could not find Dynamips and No path to a VPCS executable has been set GNS3

today, i will make video tutorial about routing static with GNS3, but i found problem. when i use ethernet switch i get this message error in console (Server error from http://127.0.0.1:8000: SW1: Could not find Dynamips) and icons switch appear in the letter "E".
complete error :

Running GNS3 version 1.4.5 on Linux (64-bit) with Python 3.5.1 Qt 5.5.1.
Copyright (c) 2006-2016 GNS3 Technologies.
Use Help -> GNS3 Doctor to detect common issues.

=>
Server error from http://127.0.0.1:8000: SW1: Could not find Dynamips
Server error from http://127.0.0.1:8000: SW2: Could not find Dynamips
Server error from http://127.0.0.1:8000: SW3: Could not find Dynamips
Server error from http://127.0.0.1:8000: SW1: Could not find Dynamips
Server error from http://127.0.0.1:8000: SW2: Could not find Dynamips


Server error from http://127.0.0.1:8000: PC1: No path to a VPCS executable has been set

how to solved Server http://127.0.0.1:8000: SW1: Could not find Dynamips ?

1. Install dependencies for Dybamips

$ sudo pacman -S libelf libpcap cmake

2. Install Dynamips

$ cd /tmp
$ curl -L https://github.com/GNS3/dynamips/archive/v0.2.15.tar.gz | tar -xz
$ cd dynamips*
$ mkdir build && cd $_
$ cmake ..
$ sudo make install
$ sudo setcap cap_net_admin,cap_net_raw=ep $(which dynamips)

for file v0.2.15.tar.gz you can edit with new release, Refer to the GNS3 dynamips repository for more information.

3. Verify the version for Dynamips

$ cd $HOME
$ dynamips 2> /dev/null | grep version
Cisco Router Simulation Platform (version 0.2.15-amd64/Linux stable)
$ getcap $(which dynamips)
/usr/local/bin/dynamips = cap_net_admin,cap_net_raw+ep

Succcess.

How to solved Server error from http://127.0.0.1:8000: PC1: No path to a VPCS executable has been set ??
1. Install Vpcs
Refer to the Virtual PC Simulator project site for more information.

$ sudo pacman -S subversion
$ cd /tmp
$ svn checkout svn://svn.code.sf.net/p/vpcs/code/trunk vpcs-code
$ cd vpcs-code/src
$ sed -i 's/i386/x86_64/' Makefile.linux
$ sed -i 's/-s -static//' Makefile.linux
$ make -f Makefile.linux
$ strip --strip-unneeded vpcs
$ sudo mv vpcs /usr/local/bin

2. Verify Version for Vpcs

$ cd $HOME
$ type vpcs
vpcs is /usr/local/bin/vpcs
$ vpcs -v | grep version
Welcome to Virtual PC Simulator, version 0.8b