Dependency conflict in generated the rust client (anchor-lang and solana-program@~2.1)

[cf]

Description of Issue

The rust client depends on anchor-lang@0.30.0 and solana-program@~2.1, and this leads to a dependency conflict as a result of anchor-lang's dependency on solana-program 1.x.

How to reproduce

pnpm create solana-program --client rust --org acme --default --shank shank-example-with-rust-client
cd shank-example-with-rust-client
pnpm install
pnpm generate
# NOTE: all of the commands above run successfully
pnpm clients:rust:test

Error Output:

shank-example-with-rust-client pnpm clients:rust:test


> @ clients:rust:test /Users/carter/sol11/solapp/shank-example-with-rust-client
> zx ./scripts/client/test-rust.mjs

$ cd /Users/carter/sol11/solapp/shank-example-with-rust-client/clients/rust
$ SBF_OUT_DIR=/Users/carter/sol11/solapp/shank-example-with-rust-client/target/deploy cargo test --features "test-sbf" 
    Updating crates.io index
error: failed to select a version for `curve25519-dalek`.
    ... required by package `solana-program v1.16.0`
    ... which satisfies dependency `solana-program = "^1.16"` of package `anchor-lang v0.30.0`
    ... which satisfies dependency `anchor-lang = "^0.30.0"` of package `acme-shank-example-with-rust-client-client v0.0.0 (/Users/carter/sol11/solapp/shank-example-with-rust-client/clients/rust)`
versions that meet the requirements `^3.2.1` are: 3.2.1

all possible versions conflict with previously selected packages.

  previously selected package `curve25519-dalek v3.0.0`
    ... which satisfies dependency `curve25519-dalek = "^3"` of package `ed25519-dalek v1.0.1`
    ... which satisfies dependency `ed25519-dalek = "=1.0.1"` of package `solana-sdk v2.1.0`
    ... which satisfies dependency `solana-sdk = "~2.1"` of package `acme-shank-example-with-rust-client-client v0.0.0 (/Users/carter/sol11/solapp/shank-example-with-rust-client/clients/rust)`

failed to select a version for `curve25519-dalek` which could resolve this conflict
Error:     Updating crates.io index
error: failed to select a version for `curve25519-dalek`.
    ... required by package `solana-program v1.16.0`
    ... which satisfies dependency `solana-program = "^1.16"` of package `anchor-lang v0.30.0`
    ... which satisfies dependency `anchor-lang = "^0.30.0"` of package `acme-shank-example-with-rust-client-client v0.0.0 (/Users/carter/sol11/solapp/shank-example-with-rust-client/clients/rust)`
versions that meet the requirements `^3.2.1` are: 3.2.1

all possible versions conflict with previously selected packages.

  previously selected package `curve25519-dalek v3.0.0`
    ... which satisfies dependency `curve25519-dalek = "^3"` of package `ed25519-dalek v1.0.1`
    ... which satisfies dependency `ed25519-dalek = "=1.0.1"` of package `solana-sdk v2.1.0`
    ... which satisfies dependency `solana-sdk = "~2.1"` of package `acme-shank-example-with-rust-client-client v0.0.0 (/Users/carter/sol11/solapp/shank-example-with-rust-client/clients/rust)`

failed to select a version for `curve25519-dalek` which could resolve this conflict
    at file:///Users/carter/sol11/solapp/shank-example-with-rust-client/scripts/client/test-rust.mjs:17:10
    exit code: 101
 ELIFECYCLE  Command failed with exit code 1.

How to fix

Downgrade solana-program (+ solana-program-test, etc.) to version ^1.18.26, and upgrade anchor-lang to version ^0.30.1
See: https://github.com/create-solana-program/shank-example-with-rust-client/pull/1/files

diff --git a/clients/rust/Cargo.toml b/clients/rust/Cargo.toml
index f1b090e..6d04d4d 100644
--- a/clients/rust/Cargo.toml
+++ b/clients/rust/Cargo.toml
@@ -13,16 +13,16 @@ test-sbf = []
 serde = ["dep:serde", "dep:serde_with"]
 
 [dependencies]
-anchor-lang = { version = "0.30.0", optional = true }
+anchor-lang = { version = "0.30.1", optional = true }
 borsh = "^0.10"
 num-derive = "^0.3"
 num-traits = "^0.2"
 serde = { version = "^1.0", features = ["derive"], optional = true }
 serde_with = { version = "^3.0", optional = true }
-solana-program = "~2.1"
+solana-program = "^1.18.26"
 thiserror = "^1.0"
 
 [dev-dependencies]
 assert_matches = "1.5.0"
-solana-program-test = "~2.1"
-solana-sdk = "~2.1"
+solana-program-test = "^1.18.26"
+solana-sdk = "^1.18.26"
diff --git a/program/Cargo.toml b/program/Cargo.toml
index b3cfc6f..876dab4 100644
--- a/program/Cargo.toml
+++ b/program/Cargo.toml
@@ -19,5 +19,5 @@ borsh = "^0.10"
 shank = "^0.4.2"
 num-derive = "^0.3"
 num-traits = "^0.2"
-solana-program = "~2.1"
+solana-program = "^1.18.26"
 thiserror = "^1.0"

[lorisleiva]

Hi there! The Solana version used by the generator defaults to the Solana version used in the current environment. Therefore, if you link to Solana 1.18 prior to running pnpm create solana-program, everything should be running the Solana 1.18 in the generated code. You can also use the --solana 1.18 option in the CLI to make it explicit.