How to solve this error?

[r0om3]

ERROR md5sum mismatch! Setup initialization mismatch! Update your copy of setupTermuxArch.sh. If you have updated it, this kind of error can go away, sort of like magic. Waiting a few minutes before executing again is recommended, especially if you are using a new copy from https://raw.githubusercontent.com/sdrausty/TermuxArch/master/setupTermuxArch.sh on your system. There are many reasons that generate checksum errors. Proxies are one reason. Mirroring and mirrors are another explanation for md5sum errors. Either way this means, "Try again, initialization was not successful." See https://sdrausty.github.io/TermuxArchPlus/md5sums for more information.

    Run setupTermuxArch.sh again. Exiting...

[SDRausty]

Thank you for posting this issue. At present the simplest solution is to downgrade wget in Termux. Use apt remove wget to downgrade your wget to https://sdrausty.github.io/TermuxArch/scripts/files/wget_1.19.2-1_aarch64.deb this version. dpkg --install wget_1.19.2-1_aarch64.deb, then bash setupTermuxArch.sh should resolve this issue for the time being. Let us know your outcome.

[SDRausty]

For armv7 users:
https://sdrausty.github.io/TermuxArch/scripts/files/wget_1.19.2_arm.deb https://sdrausty.github.io/TermuxArch/scripts/files/libuuid_1.0.3-1_arm.deb
https://sdrausty.github.io/TermuxArch/scripts/files/libunistring_0.9.7_arm.deb
https://sdrausty.github.io/TermuxArch/scripts/files/pcre_8.41-1_arm.deb

Use apt remove wget libunistring followed by dpkg --install libunistring_0.9.7_arm.deb wget_1.19.2_arm.deb as a temporary solution to this topic.

[SDRausty]

#32 (comment) wget might be producing other maladies as well with version 1.19.3.

Automatic x86_64 download from evowise no longer works #32
How to solve this error? #35
Latest wget 1.19.3 produces errors termux/termux-packages#2052
All three(3) of these may be related, including this topic.

All three(3) of these may be related, including this topic to wget 1.19.3 and libunistring.

if [ $(getprop ro.product.cpu.abi) = x86_64 ];then
wget -A tar.gz -m -nd -np http://$mirror$path

From https://raw.githubusercontent.com/sdrausty/TermuxArch/master/scripts/files/stable/necessaryfunctions.sh

[r0om3]

thanks for the solution I think this is running

[SDRausty]

Thank you for sharing!