Like one of the previous issues that I've posted, I'm not really sure if it's an issue with the mod or something on my end but am on 1.4.5 and setting my FabricShieldItem's parameters to "(new FabricItemSettings().maxDamage(36).group(ItemGroup.COMBAT), 10, 0, ItemTags.PLANKS)" still tells me that the required type is "item".

Your workspace is still probably using 1.4.3 even though you updated just changing the version in the file isn't enough. Bc there are still built files using 1.4.3

You should close your IDE, run gradlew clean then
gradlew genSources then
then re-generate the IDE settings. Using the command you used to setup the workspace for vscode it would be "gradlew vscode" and if your not on windows you'd use gradle instead of gradlew

that worked, thanks!