Fixed a null pointer error
Fixed a null pointer error
evolvedmicrobe/beast-mcmc,evolvedmicrobe/beast-mcmc,danieljue/beast-mcmc,evolvedmicrobe/beast-mcmc,danieljue/beast-mcmc,danieljue/beast-mcmc,danieljue/beast-mcmc,danieljue/beast-mcmc,evolvedmicrobe/beast-mcmc,evolvedmicrobe/beast-mcmc