use of undeclared crate or module `heapless`

[Admsher]

I am getting an issue in which i am not able to import heapless in my project, have done the following:

used cargo add heapless to add the dependency (v0.8.0)

imported the crate using "use heapless::Vec;"

also i have added #[no_std] in the file

[newAM]

Please include your Cargo.toml (or ideally a commit hash to the complete code on GitHub) and the full error message.

[Admsher]

Hi thanks for the reply as I don't have access to my work laptop as of now I will do it by tomorrow

[Admsher]

Cargo.toml `[package] name = "EMDU" version = "0.1.0" edition = "2021"

[dependencies] cortex-m-semihosting = "0.5.0" embedded-storage = "0.3.1" heapless = "0.8.0" panic-halt = "0.2" cortex-m-rt = "0.7"

[dependencies.MXP1064] version = "0.1.0" path= "../MXP1064" features=["rt"]

[build-dependencies] bindgen = "0.65.1" cc = "1.0"

[features] default = [] flexible_data_rate = [] no_superv_support = [] doze_mode_support = [] pn_mode = [] memory_error_control = [] enhanced_bit_timing_reg = []`

error

use heapless::String; | ^^^^^^^^ use of undeclared crate or module heapless

[Admsher]

Solved it , apparently we have to add the heapless in [build-dependencies] instead of [dependencies] which is strange because the cargo add imports it as a dependency