Linux tc filter add - errors RTNETLINK answers: Operation not supported

I'm working on the network simulation to create some traffic on specific ports , and trying to inject the network delay. I'm using the linux tc utility to do this operations. So i'm new to the tc command , help will be much appreciated. I tried to add filter using the tc filter command and it gave the "RTNETLINK answers: Operation not supported We have an error talking to the kernel" Below are the commands i ran in particular order, 1. sudo /sbin/tc qdisc show qdisc mq 0: dev eth0 root qdisc pfifo_fast 0: dev eth0 parent :1 bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 2. Then I added the delay using the below command, sudo /sbin/tc qdisc add dev eth0 parent :1 netem delay 100ms 3. Now i can see and list the delay sudo /sbin/tc qdisc show qdisc mq 0: dev eth0 root qdisc netem 8006: dev eth0 parent :1 limit 1000 delay 100.0ms 4. Next i ran the below command to add the filter to the port 7000 sudo /sbin/tc filter add dev eth0 parent :1 protocol ip u32 match ip sport 7000 0xffff flowid 1:2 ` RTNETLINK answers: Operation not supported We have an error talking to the kernel` 1. Can you please help me in how to add the filter to match the port? 2. Is there a way not to match , like is there a way to exclude the specfic ports in the filter command Thanks