Hiii.. As i'm installing maker genome annotation pipeline, when it comes with building dependencies it shows the following errors while the installation of Apollo. have you any idea? thank you...

./Build apollo
Downloading apollo...
--2019-08-02 16:28:57--  http://weatherby.genetics.utah.edu/apollo/apollo.tar.gz
Resolving weatherby.genetics.utah.edu weatherby.genetics.utah.edu)... 155.101.145.57
Connecting to weatherby.genetics.utah.edu weatherby.genetics.utah.edu)|155.101.145.57|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 35043986 (33M) [application/x-gzip]
Saving to: ‘/home/dcb/Documents/EV/Maker/maker/src/../exe/apollo.tar.gz’

100%[======================================================================================================>] 3,50,43,986  850KB/s   in 45s    

2019-08-02 16:29:43 (768 KB/s) - ‘/home/dcb/Documents/EV/Maker/maker/src/../exe/apollo.tar.gz’ saved [35043986/35043986]

Unpacking apollo tarball...
Configuring apollo...
Use of uninitialized value $dir in concatenation (.) or string at /home/dcb/Documents/EV/Maker/maker/src/inc/lib/MAKER/Build.pm line 1364.
Use of uninitialized value $dir in concatenation (.) or string at /home/dcb/Documents/EV/Maker/maker/src/inc/lib/MAKER/Build.pm line 1365.
Use of uninitialized value $dir in concatenation (.) or string at /home/dcb/Documents/EV/Maker/maker/src/inc/lib/MAKER/Build.pm line 1366.
Unable to locate tools.jar. Expected to find it in /usr/lib/jvm/java-7-openjdk-amd64/lib/tools.jar
Buildfile: build.xml does not exist!
Build failed


ERROR: Failed installing apollo, now cleaning installation path...
You may need to install apollo manually.