Example program fails to build or run on latest Solana version

[0xAllan123]

While testing the token-counter example from the Solana Developer Program, the build fails with the following error:
error[E0433]: failed to resolve: use of undeclared crate or module solana_program
This occurs after updating to Solana CLI v1.18.x and Anchor v0.30.x.

Steps to Reproduce:

1. Clone the repository
   git clone https://github.com/solana-developers/program-examples.git cd program-examples/token-counter
2. Build and deploy the program
   anchor build anchor deploy
3. Observe the error output above.

Expected Behaviour:
The example should compile and deploy successfully without modification.

Actual Behaviour:
The build fails due to an unresolved dependency or outdated import path.

Environment:

• OS: macOS 14.5 / Ubuntu 22.04
• Solana CLI: v1.18.3
• Anchor: v0.30.1
• Rust: 1.81.0

[Perelyn-sama]

program-examples/token-counter is not a valid path