i3blocks bad exit code 127

I need some help with i3blocks. For some reason, the default config gives me a bad exit code 127 error. Some backround info, I was trying to set up a link inbetween two files, one being the i3blocks config file. This is my i3blocks config # i3blocks config file # # Please see man i3blocks for a complete reference! # The man page is also hosted at http://vivien.github.io/i3blocks # # List of valid properties: # # align # color # command # full_text # instance # interval # label # min_width # name # separator # separator_block_width # short_text # signal # urgent

# Global properties
#
# The top properties below are applied to every block, but can be overridden.
# Each block command defaults to the script name to avoid boilerplate.
command=$SCRIPT_DIR/$BLOCK_NAME
separator_block_width=15
markup=none

# Volume indicator
#
# The first parameter sets the step (and units to display)
# The second parameter overrides the mixer selection
# See the script for details.
[volume]
label=VOL
#label=♪
instance=Master
#instance=PCM
interval=once
signal=10

# Memory usage
#
# The type defaults to "mem" if the instance is not specified.
[memory]
label=MEM
separator=false
interval=30

[memory]
label=SWAP
instance=swap
separator=false
interval=30

# Disk usage
#
# The directory defaults to $HOME if the instance is not specified.
# The script may be called with a optional argument to set the alert
# (defaults to 10 for 10%).
[disk]
label=HOME
#instance=/mnt/data
interval=30

# Network interface monitoring
#
# If the instance is not specified, use the interface used for default route.
# The address can be forced to IPv4 or IPv6 with -4 or -6 switches.
[iface]
#instance=wlan0
color=#00FF00
interval=10
separator=false

[wifi]
#instance=wlp3s0
interval=10
separator=false

[bandwidth]
#instance=eth0
interval=5

# CPU usage
#
# The script may be called with -w and -c switches to specify thresholds,
# see the script for details.
[cpu_usage]
label=CPU
interval=10
min_width=CPU: 100.00%
#separator=false

#[load_average]
#interval=10

# Battery indicator
#
# The battery instance defaults to 0.
[battery]
label=BAT
#label=⚡
#instance=1
interval=30

# Date Time
#
[time]
command=date '+%Y-%m-%d %H:%M:%S'
interval=5

Here is the output that i3blocks gives me

{"version":1,"click_events":true}
[[]
,[{"full_text":""}]
ERROR block_reap:328: [volume] bad exit code 127
,[{"full_text":""}]
ERROR block_reap:328: [iface] bad exit code 127
ERROR block_reap:328: [cpu_usage] bad exit code 127
ERROR block_reap:328: [memory] bad exit code 127
ERROR block_reap:328: [battery] bad exit code 127
,[{"full_text":""},{"":"","full_text":"2016-05-15 14:55:07","name":"time","separator_block_width":15,"markup":"none"}]
,[{"full_text":""},{"":"","full_text":"2016-05-15 14:55:07","name":"time","separator_block_width":15,"markup":"none"}]
ERROR block_reap:328: [bandwidth] bad exit code 127
,[{"full_text":""},{"":"","full_text":"2016-05-15 14:55:07","name":"time","separator_block_width":15,"markup":"none"}]
ERROR block_reap:328: [wifi] bad exit code 127
,[{"full_text":""},{"":"","full_text":"2016-05-15 14:55:07","name":"time","separator_block_width":15,"markup":"none"}]
ERROR block_reap:328: [disk] bad exit code 127
,[{"full_text":""},{"":"","full_text":"2016-05-15 14:55:07","name":"time","separator_block_width":15,"markup":"none"}]
ERROR block_reap:328: [memory] bad exit code 127
,[{"full_text":""},{"":"","full_text":"2016-05-15 14:55:07","name":"time","separator_block_width":15,"markup":"none"}]
    

Any help will be much appreciated