I've a problem updating my Ubuntu pc. Every time I launch the command to update, the terminal return this:
15 upgraded, 5 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 0 B/79,3 MB of archives.
After this operation, 324 MB of additional disk space will be used.
Preconfiguring packages ...
Setting up oracle-java8-installer (8u171-1~webupd8~0) ...
Installing from local file /var/cache/oracle-jdk8-installer/jdk-8u171-linux-x64.
tar.gz
Removing outdated cached downloads...
sha256sum mismatch jdk-8u171-linux-x64.tar.gz
Oracle JDK 8 is NOT installed.
dpkg: error processing package oracle-java8-installer (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
oracle-java8-installer
E: Sub-process /usr/bin/dpkg returned an error code (1)
What can I do in order to solve this problem?