Possible unit testing issue

[Original message in Condor TG channel](https://t.me/CSPRCondor/3/130)

Hello, getting this error while trying to deploy a contract in a test environment

`error: Some(
WasmPreprocessing(
OperationForbiddenByGasRules,
),`

Could someone explain exactly what it means and how to deal with it? Thanks

Not running a network, just executing tests in a casper rust project. Using the following dependencies

casper-types = { git = "https://github.com/casper-network/casper-node.git", branch = "release-2.0.0-rc3", default-features = false }
casper-engine-test-support = { git = "https://github.com/casper-network/casper-node.git", branch = "release-2.0.0-rc3", default-features = false }
casper-execution-engine = { git = "https://github.com/casper-network/casper-node.git", branch = "release-2.0.0-rc3", default-features = false }
casper-storage = { git = "https://github.com/casper-network/casper-node.git", branch = "release-2.0.0-rc3", default-features = false }