I try to install some things but i keep getting this error:

Error occured during initialization of VM
Could not reserve enough space for object heap
Could not create the JAVA virtual machine.
dpkg: error processing ca-certificates-java (--configure):
 subprocess installed post-installation script returned error exit status 1.
Errors were encountered while processing:
E: Sub-process /usr/bin/dpkg returned an error code (1)

What should i do?

2 Answers 2



dpkg --force-depends --configure ca-certificates-java

and solve other error appearing

  • Please provide some more information what the command does and how it solves the issue. Sep 20, 2019 at 7:01

You need to first remove ca-certificates-java. After removing it you may need to reinstall your java.

Remove it completely using

sudo apt-get purge ca-certificates-java

After it execute

sudo apt-get install -f 
  • After i execute sudo apt-get install -f i get same error.
    – D3canas
    Jan 30, 2015 at 19:17
  • 1
    @D3canas, execute sudo mv /var/lib/dpkg/info/ca-certificates-java.postinst /var/lib/dpkg/info/ca-certificates-java.postinst.bac before the first command and re-execute both commands.
    – g_p
    Jan 30, 2015 at 19:31
  • then i execute those without space between mv/var i get error: command not found then i execute with scape mv /var i get error: mv: missing destination file operand after:/var/lib/dpkg/info/ca-certificates-java.postinst
    – D3canas
    Jan 31, 2015 at 9:56
  • @D3canas the whole grayed line is single command . copy from sudo to postinst.bac and execute it.
    – g_p
    Jan 31, 2015 at 10:01
  • Still getting same error :( Maybe after removing certificates i should reboot or something?
    – D3canas
    Jan 31, 2015 at 14:23

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.