Fix the pair creation

runtime/common/src/zenlink.rs

@@ -1,7 +1,7 @@
 use frame_support::traits::{fungibles, Get};
 use frame_system::Config as SysConfig;
 use pallet_assets::Config as AssetsConfig;
-use sp_runtime::traits::Convert;
+use sp_runtime::traits::{Convert, Zero};
 use sp_std::marker::PhantomData;
 use zenlink_protocol::GenerateLpAssetId;
 
@@ -43,16 +43,15 @@ where
 		let asset_id0: PeaqAssetId = (*asset0).try_into().ok()?;
 		let asset_id1: PeaqAssetId = (*asset1).try_into().ok()?;
 
+		let min = if ExistentialDeposit::get().is_zero() {
+			ExistentialDeposit::get() + 1u32.into()
+		} else {
+			ExistentialDeposit::get()
+		};
 		match (asset_id0, asset_id1) {
 			(PeaqAssetId::Token(symbol0), PeaqAssetId::Token(symbol1)) => {
 				let lp_currency = PeaqAssetId::LPToken(symbol0, symbol1);
-				Local::create(
-					lp_currency.try_into().ok()?,
-					AdminAccount::get(),
-					true,
-					ExistentialDeposit::get(),
-				)
-				.ok()?;
+				Local::create(lp_currency.try_into().ok()?, AdminAccount::get(), true, min).ok()?;
 				// Cannot setup the metadata for the LP asset because admin account doesn't have
 				// enough balance.
 				Some(())

runtime/krest/src/lib.rs

@@ -2130,7 +2130,6 @@ impl pallet_vesting::Config for Runtime {
 
 parameter_types! {
 	pub const AssetDeposit: Balance = 20 * CENTS;
-	pub const AssetExistentialDeposit: Balance = ExistentialDeposit::get();
 	pub const AssetApprovalDeposit: Balance = 20 * MILLICENTS;
 	pub const AssetsStringLimit: u32 = 50;
 	/// Key = 32 bytes, Value = 36 bytes (32+1+1+1+1)

runtime/peaq-dev/src/lib.rs

@@ -2145,8 +2145,8 @@ impl pallet_vesting::Config for Runtime {
 }
 
 parameter_types! {
-	pub const AssetDeposit: Balance = ExistentialDeposit::get();
-	pub const AssetExistentialDeposit: Balance = ExistentialDeposit::get();
+	pub const AssetDeposit: Balance = 20 * CENTS;
+	pub const AssetApprovalDeposit: Balance = 20 * MILLICENTS;
 	pub const AssetsStringLimit: u32 = 50;
 	/// Key = 32 bytes, Value = 36 bytes (32+1+1+1+1)
 	// https://github.com/paritytech/substrate/blob/069917b/frame/assets/src/lib.rs#L257L271
@@ -2166,7 +2166,7 @@ impl pallet_assets::Config for Runtime {
 	type MetadataDepositBase = MetadataDepositBase;
 	type MetadataDepositPerByte = MetadataDepositPerByte;
 	type AssetAccountDeposit = AssetAccountDeposit;
-	type ApprovalDeposit = AssetExistentialDeposit;
+	type ApprovalDeposit = AssetApprovalDeposit;
 	type StringLimit = AssetsStringLimit;
 	type Freezer = ();
 	type Extra = ();

runtime/peaq/src/lib.rs

@@ -2176,7 +2176,6 @@ impl pallet_vesting::Config for Runtime {
 
 parameter_types! {
 	pub const AssetDeposit: Balance = DOLLARS;
-	pub const AssetExistentialDeposit: Balance = ExistentialDeposit::get();
 	pub const AssetApprovalDeposit: Balance = 100 * MILLICENTS;
 	pub const AssetsStringLimit: u32 = 50;
 	/// Key = 32 bytes, Value = 36 bytes (32+1+1+1+1)