Solana curriculum - Hello World Smart Contract Lesson 28

1

I’m having trouble with lesson 28 in the solana curriculum of the hello world smart contract.

The task is to build the program using the command below:

cargo build-sbf --sbf-out-dir=../../dist/program

When I run the command in my terminal(im in this directroy btw - ~/solana-curriculum/learn-how-to-set-up-solana-by-building-a-hello-world-smart-contract/src/program-rust#) I get this error:
error: package constant_time_eq v0.3.0 cannot be built because it requires rustc 1.66.0 or newer, while the currently active rustc version is 1.62.0-dev

I ran rustc --version and the currect version is 1.72
I also updated rust using rustup update.

Thanks in advance :slight_smile:

2

I also noticed, that although I am in the correct directory:
~/solana-curriculum/learn-how-to-set-up-solana-by-building-a-hello-world-smart-contract#

I cant pass any of the tests.

Every test sees my output as /r and I write the exact command mentioned in the lesson.

It’s interesting because when I’m doing the lessons in the lib.rs file I pass the tests.

Not sure if this is an issue on my end or with how freecodecamp is evaluating my commands/ running tests.

3

Welcome there,

What version of solana do you have?

4

hey @Sky020

My dev container is running Solana 1.14.7 the same one lesson 2 says to download, here’s the cli command:

sh -c "$(curl -sSfL https://release.solana.com/v1.14.7/install)"
5

Try updating it to the latest version:

sh -c "$(curl -sSfL https://release.solana.com/v1.16.13/install)"

1 Like
6

Thanks @Sky020 that solved the issue and I can compile the program now :raised_hands:

Do you know why I’m failing all the command line tests even though I’m putting in all the right commands?

7

If you have unexpected Git changes, they can fail. See:

Hope this helps

1 Like
8

Thanks for your help @Sky020

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A post was split to a new topic: Solana Curriculum - Project 1 Lesson 28

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