building problem

[paul-cpp]

Hi, i can not build it now.
log:

`FAILURE: Build failed with an exception.

• Where:
  Build file '/simulator/build.gradle' line: 28
• What went wrong:
  A problem occurred evaluating root project 'doip-custom-simulation'.

Could not resolve all files for configuration ':runtimeClasspath'.
Could not resolve com.github.doip:doip-simulation:1.4.1.
Required by:
project :
> Could not resolve com.github.doip:doip-simulation:1.4.1.
> Could not get resource 'https://jcenter.bintray.com/com/github/doip/doip-simulation/1.4.1/doip-simulation-1.4.1.pom'.
> Could not GET 'https://jcenter.bintray.com/com/github/doip/doip-simulation/1.4.1/doip-simulation-1.4.1.pom'.
> Read timed out
Could not resolve com.github.doip:doip-library:1.1.5.
Required by:
project :
> Could not resolve com.github.doip:doip-library:1.1.5.
> Could not get resource 'https://jcenter.bintray.com/com/github/doip/doip-library/1.1.5/doip-library-1.1.5.pom'.
> Could not GET 'https://jcenter.bintray.com/com/github/doip/doip-library/1.1.5/doip-library-1.1.5.pom'.
> Read timed out
Could not resolve com.github.doip:doip-logging:1.1.7.
Required by:
project :
> Could not resolve com.github.doip:doip-logging:1.1.7.
> Could not get resource 'https://jcenter.bintray.com/com/github/doip/doip-logging/1.1.7/doip-logging-1.1.7.pom'.
> Could not GET 'https://jcenter.bintray.com/com/github/doip/doip-logging/1.1.7/doip-logging-1.1.7.pom'.
> Read timed out

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
• Get more help at https://help.gradle.org`