Substrate - Pallet-Nicks Tutorial - error: unexpected token #10993 - rust

Question

added dependencies & features in the Cargo.toml
then: $ cargo build --release
how can I fix this?
A lot of errors are occurring:
Compiling node-template-runtime v4.0.0-dev (/home/robert/substrate-node-template/runtime)
Compiling pallet-nicks v4.0.0-dev (https://github.com/paritytech/substrate.git?branch=polkadot-v0.9.17#22d40c76)
error: failed to run custom build command for `node-template-runtime v4.0.0-dev (/home/robert/substrate-node-template/runtime)`
Caused by:
process didn't exit successfully: `/home/robert/substrate-node-template/target/release/build/node-template-runtime-6e84ec0a3716120c/build-script-build` (exit status: 1)
--- stdout
Information that should be included in a bug report.
Executing build command: "rustup" "run" "nightly" "cargo" "rustc" "--target=wasm32-unknown-unknown" "--manifest-path=/home/robert/substrate-node-template/target/release/wbuild/node-template-runtime/Cargo.toml" "--color=always" "--profile" "release"
Using rustc version: rustc 1.61.0-nightly (38a0b81b1 2022-03-06)
--- stderr
Compiling pallet-nicks v4.0.0-dev (https://github.com/paritytech/substrate.git?branch=polkadot-v0.9.17#22d40c76)
Compiling node-template-runtime v4.0.0-dev (/home/robert/substrate-node-template/runtime)
error: unexpected token
--> /home/robert/substrate-node-template/runtime/src/lib.rs:326:2
|
326 | / {
327 | | /* --snip-- */
328 | | Balances: pallet_balances,
329 | |
330 | | /*** Add This Line ***/
331 | | Nicks: pallet_nicks,
332 | | }
| |_____^
error[E0433]: failed to resolve: use of undeclared type `Runtime`
--> /home/robert/substrate-node-template/runtime/src/lib.rs:396:24
|
396 | OpaqueMetadata::new(Runtime::metadata().into())
| ^^^^^^^ use of undeclared type `Runtime`
error[E0433]: failed to resolve: use of undeclared type `Aura`
--> /home/robert/substrate-node-template/runtime/src/lib.rs:439:49
|
439 | sp_consensus_aura::SlotDuration::from_millis(Aura::slot_duration())
| ^^^^ use of undeclared type `Aura`
error[E0433]: failed to resolve: use of undeclared type `Aura`
--> /home/robert/substrate-node-template/runtime/src/lib.rs:443:4
|
443 | Aura::authorities().into_inner()
| ^^^^ use of undeclared type `Aura`
error[E0433]: failed to resolve: use of undeclared type `Grandpa`
--> /home/robert/substrate-node-template/runtime/src/lib.rs:461:4
|
461 | Grandpa::grandpa_authorities()
| ^^^^^^^ use of undeclared type `Grandpa`
error[E0433]: failed to resolve: use of undeclared type `Grandpa`
--> /home/robert/substrate-node-template/runtime/src/lib.rs:465:4
|
465 | Grandpa::current_set_id()
| ^^^^^^^ use of undeclared type `Grandpa`
error[E0433]: failed to resolve: use of undeclared type `System`
--> /home/robert/substrate-node-template/runtime/src/lib.rs:491:4
|
491 | System::account_nonce(account)
| ^^^^^^ use of undeclared type `System`
error[E0433]: failed to resolve: use of undeclared type `TransactionPayment`
--> /home/robert/substrate-node-template/runtime/src/lib.rs:500:4
|
500 | TransactionPayment::query_info(uxt, len)
| ^^^^^^^^^^^^^^^^^^ use of undeclared type `TransactionPayment`
and so on

Answer 1

When you get this type of chained errors, it is likely that you have copied something wrong, accidentally deleting some important element, for example, a comma, a semicolon, etc.
Make sure you didn't delete anything important and try again.
If this is not the case, then check this line, I think it is the key:
error: unexpected token --> /home/robert/substrate-node-template/runtime/src/lib.rs:326:2
| 326 | / { 327 | | /* --snip-- / 328 | | Balances: pallet_balances, 329
|
| 330 | | /** Add This Line ***/ 331 | | Nicks: pallet_nicks, 332 | | }
| |_____^