RhythmboxPOPM bash build bugs

~/Installers/RhythmboxPOPM$ bash build
[sudo] password for simon:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libgit2-28 libmbedcrypto3 libmbedtls12 libmbedx509-0 libqgis-3d3.14.0
  libqgis-3d3.14.1 libqgis-analysis3.14.0 libqgis-analysis3.14.1
  libqgis-app3.14.0 libqgis-app3.14.1 libqgis-core3.14.0 libqgis-core3.14.1
  libqgis-gui3.14.0 libqgis-gui3.14.1 libqgis-native3.14.0
  libqgis-native3.14.1 libqgis-server3.14.0 libqgis-server3.14.1
  libqgisgrass7-3.14.0 libqgisgrass7-3.14.1 libqgispython3.14.0
  libqgispython3.14.1 libstd-rust-1.41
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  libmime-charset-perl libposix-strptime-perl libsombok3
  libunicode-linebreak-perl
Suggested packages:
  libencode-hanextra-perl libpod2-base-perl
The following NEW packages will be installed
  libimage-exiftool-perl libmime-charset-perl libposix-strptime-perl
  libsombok3 libunicode-linebreak-perl
0 to upgrade, 5 to newly install, 0 to remove and 0 not to upgrade.
Need to get 3,560 kB of archives.
After this operation, 21.7 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 libimage-exiftool-perl all 11.88-1 [3,396 kB]
Get:2 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 libmime-charset-perl all 1.012.2-1 [30.9 kB]
Get:3 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 libposix-strptime-perl amd64 0.13-1build5 [8,820 B]
Get:4 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 libsombok3 amd64 2.4.0-2 [26.9 kB]
Get:5 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 libunicode-linebreak-perl amd64 0.0.20190101-1build1 [96.9 kB]
Fetched 3,560 kB in 1s (2,810 kB/s)
Selecting previously unselected package libimage-exiftool-perl.
(Reading database ... 314468 files and directories currently installed.)
Preparing to unpack .../libimage-exiftool-perl_11.88-1_all.deb ...
Unpacking libimage-exiftool-perl (11.88-1) ...
Selecting previously unselected package libmime-charset-perl.
Preparing to unpack .../libmime-charset-perl_1.012.2-1_all.deb ...
Unpacking libmime-charset-perl (1.012.2-1) ...
Selecting previously unselected package libposix-strptime-perl.
Preparing to unpack .../libposix-strptime-perl_0.13-1build5_amd64.deb ...
Unpacking libposix-strptime-perl (0.13-1build5) ...
Selecting previously unselected package libsombok3:amd64.
Preparing to unpack .../libsombok3_2.4.0-2_amd64.deb ...
Unpacking libsombok3:amd64 (2.4.0-2) ...
Selecting previously unselected package libunicode-linebreak-perl.
Preparing to unpack .../libunicode-linebreak-perl_0.0.20190101-1build1_amd64.deb
 ...
Unpacking libunicode-linebreak-perl (0.0.20190101-1build1) ...
Setting up libsombok3:amd64 (2.4.0-2) ...
Setting up libimage-exiftool-perl (11.88-1) ...
Setting up libposix-strptime-perl (0.13-1build5) ...
Setting up libmime-charset-perl (1.012.2-1) ...
Setting up libunicode-linebreak-perl (0.0.20190101-1build1) ...
Processing triggers for libc-bin (2.31-0ubuntu9) ...
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for doc-base (0.10.9) ...
Processing 1 added doc-base file...
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libgit2-28 libmbedcrypto3 libmbedtls12 libmbedx509-0 libqgis-3d3.14.0
  libqgis-3d3.14.1 libqgis-analysis3.14.0 libqgis-analysis3.14.1
  libqgis-app3.14.0 libqgis-app3.14.1 libqgis-core3.14.0 libqgis-core3.14.1
  libqgis-gui3.14.0 libqgis-gui3.14.1 libqgis-native3.14.0
  libqgis-native3.14.1 libqgis-server3.14.0 libqgis-server3.14.1
  libqgisgrass7-3.14.0 libqgisgrass7-3.14.1 libqgispython3.14.0
  libqgispython3.14.1 libstd-rust-1.41
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  python3-eyed3 python3-magic
Suggested packages:
  python3-pylast
The following NEW packages will be installed
  eyed3 python3-eyed3 python3-magic
0 to upgrade, 3 to newly install, 0 to remove and 0 not to upgrade.
Need to get 117 kB of archives.
After this operation, 624 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://us.archive.ubuntu.com/ubuntu focal/main amd64 python3-magic all 2:0.4.15-3 [9,376 B]
Get:2 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 python3-eyed3 all 0.8.10-1.1 [96.6 kB]
Get:3 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 eyed3 all 0.8.10-1.1 [11.1 kB]
Fetched 117 kB in 1s (202 kB/s)
Selecting previously unselected package python3-magic.
(Reading database ... 315143 files and directories currently installed.)
Preparing to unpack .../python3-magic_2%3a0.4.15-3_all.deb ...
Unpacking python3-magic (2:0.4.15-3) ...
Selecting previously unselected package python3-eyed3.
Preparing to unpack .../python3-eyed3_0.8.10-1.1_all.deb ...
Unpacking python3-eyed3 (0.8.10-1.1) ...
Selecting previously unselected package eyed3.
Preparing to unpack .../eyed3_0.8.10-1.1_all.deb ...
Unpacking eyed3 (0.8.10-1.1) ...
Setting up python3-magic (2:0.4.15-3) ...
Setting up python3-eyed3 (0.8.10-1.1) ...
Setting up eyed3 (0.8.10-1.1) ...
Processing triggers for man-db (2.9.1-1) ...
ID3Reader.java:59: error: cannot find symbol
        for (var i = 0; i < files.length; i++) {
             ^
  symbol:   class var
  location: class ID3Reader
POPMToRB.java:73: error: cannot find symbol
            int fileRating = POPMDecoder.extractRating(popmFrames[i][0]);
                             ^
  symbol:   variable POPMDecoder
  location: class POPMToRB
POPMToRB.java:76: error: cannot find symbol
            int filePlayCount = POPMDecoder.extractPlayCount(popmFrames[i][0]);
                                ^
  symbol:   variable POPMDecoder
  location: class POPMToRB
3 errors
RBToPOPM.class : no such file or directory
added manifest
POPMToRB.class : no such file or directory
ID3Reader.class : no such file or directory
POPMDecoder.class : no such file or directory
added manifest