diff --git a/src/examples/BuyAsset.ts b/src/examples/BuyAsset.ts
index 9d59078..a50c0fb 100644
--- a/src/examples/BuyAsset.ts
+++ b/src/examples/BuyAsset.ts
@@ -5,8 +5,9 @@ import Service from "../ddo/Service"
 import DID from "../ocean/DID"
 import {Account, Logger, Ocean, ServiceAgreement} from "../squid"
 import config from "./config"
+import {runner} from "./runner"
 
-(async () => {
+async function exec() {
     const ocean: Ocean = await Ocean.getInstance(config)
 
     const publisher: Account = (await ocean.getAccounts())[0]
@@ -68,6 +69,6 @@ import config from "./config"
 
     const paid = await serviceAgreement.payAsset(did.getId(), metaData.base.price, consumer)
     Logger.log(`Asset paid: ${paid}`)
+}
 
-    process.exit(0)
-})()
+runner(exec)
diff --git a/src/examples/ExecuteAgreement.ts b/src/examples/ExecuteAgreement.ts
index 7dd5d8d..9a3fe2b 100644
--- a/src/examples/ExecuteAgreement.ts
+++ b/src/examples/ExecuteAgreement.ts
@@ -4,8 +4,9 @@ import MetaDataBase from "../ddo/MetaDataBase"
 import Service from "../ddo/Service"
 import {Account, Logger, Ocean, ServiceAgreement} from "../squid"
 import config from "./config"
+import {runner} from "./runner"
 
-(async () => {
+async function exec() {
     const ocean: Ocean = await Ocean.getInstance(config)
 
     const publisher: Account = (await ocean.getAccounts())[0]
@@ -63,6 +64,6 @@ import config from "./config"
         consumer,
         publisher)
     Logger.log("ServiceAgreement Id:", serviceAgreement.getId())
+}
 
-    process.exit(0)
-})()
+runner(exec)
diff --git a/src/examples/GetAccounts.ts b/src/examples/GetAccounts.ts
index 9f14d23..94639b9 100644
--- a/src/examples/GetAccounts.ts
+++ b/src/examples/GetAccounts.ts
@@ -1,12 +1,13 @@
 import {Logger, Ocean} from "../squid"
 import config from "./config"
+import {runner} from "./runner"
 
-(async () => {
+async function exec() {
     const ocean: Ocean = await Ocean.getInstance(config)
 
     const accounts = await ocean.getAccounts()
 
     Logger.log(JSON.stringify(accounts, null, 2))
+}
 
-    process.exit(0)
-})()
+runner(exec)
diff --git a/src/examples/GetBalance.ts b/src/examples/GetBalance.ts
index 308f8b4..58619a1 100644
--- a/src/examples/GetBalance.ts
+++ b/src/examples/GetBalance.ts
@@ -1,12 +1,13 @@
 import {Logger, Ocean} from "../squid"
 import config from "./config"
+import {runner} from "./runner"
 
-(async () => {
+async function exec() {
     const ocean: Ocean = await Ocean.getInstance(config)
 
     const accounts = await ocean.getAccounts()
 
     Logger.log(await accounts[0].getBalance())
+}
 
-    process.exit(0)
-})()
+runner(exec)
diff --git a/src/examples/GetHDWalletAccounts.ts b/src/examples/GetHDWalletAccounts.ts
index 9f14d23..94639b9 100644
--- a/src/examples/GetHDWalletAccounts.ts
+++ b/src/examples/GetHDWalletAccounts.ts
@@ -1,12 +1,13 @@
 import {Logger, Ocean} from "../squid"
 import config from "./config"
+import {runner} from "./runner"
 
-(async () => {
+async function exec() {
     const ocean: Ocean = await Ocean.getInstance(config)
 
     const accounts = await ocean.getAccounts()
 
     Logger.log(JSON.stringify(accounts, null, 2))
+}
 
-    process.exit(0)
-})()
+runner(exec)
diff --git a/src/examples/GrantAccess.ts b/src/examples/GrantAccess.ts
index ecc2237..1430d55 100644
--- a/src/examples/GrantAccess.ts
+++ b/src/examples/GrantAccess.ts
@@ -5,8 +5,9 @@ import Service from "../ddo/Service"
 import DID from "../ocean/DID"
 import {Account, Logger, Ocean, ServiceAgreement} from "../squid"
 import config from "./config"
+import {runner} from "./runner"
 
-(async () => {
+async function exec() {
     const ocean: Ocean = await Ocean.getInstance(config)
 
     const publisher: Account = (await ocean.getAccounts())[0]
@@ -71,6 +72,6 @@ import config from "./config"
 
     const accessGranted = await serviceAgreement.grantAccess(did.getId(), did.getId(), publisher)
     Logger.log(`Asset access granted: ${accessGranted}`)
+}
 
-    process.exit(0)
-})()
+runner(exec)
diff --git a/src/examples/InitializeAgreement.ts b/src/examples/InitializeAgreement.ts
index 642058f..ede88b2 100644
--- a/src/examples/InitializeAgreement.ts
+++ b/src/examples/InitializeAgreement.ts
@@ -4,8 +4,9 @@ import MetaDataBase from "../ddo/MetaDataBase"
 import Service from "../ddo/Service"
 import {Account, Logger, Ocean} from "../squid"
 import config from "./config"
+import {runner} from "./runner"
 
-(async () => {
+async function exec() {
     const ocean: Ocean = await Ocean.getInstance(config)
 
     const publisher: Account = (await ocean.getAccounts())[1]
@@ -71,6 +72,6 @@ import config from "./config"
         Logger.warn("Error on initializeServiceAgreement:", e)
         process.exit(1)
     }
+}
 
-    process.exit(0)
-})()
+runner(exec)
diff --git a/src/examples/RegisterAsset.ts b/src/examples/RegisterAsset.ts
index 2b91a8e..483b089 100644
--- a/src/examples/RegisterAsset.ts
+++ b/src/examples/RegisterAsset.ts
@@ -3,8 +3,9 @@ import MetaData from "../ddo/MetaData"
 import MetaDataBase from "../ddo/MetaDataBase"
 import {Account, Logger, Ocean} from "../squid"
 import config from "./config"
+import {runner} from "./runner"
 
-(async () => {
+async function exec() {
     const ocean: Ocean = await Ocean.getInstance(config)
 
     const publisher: Account = (await ocean.getAccounts())[0]
@@ -41,6 +42,6 @@ import config from "./config"
 
     const ddo: DDO = await ocean.registerAsset(metaData, publisher)
     Logger.log(ddo.id)
+}
 
-    process.exit(0)
-})()
+runner(exec)
diff --git a/src/examples/RegisterServiceAgreementTemplates.ts b/src/examples/RegisterServiceAgreementTemplates.ts
index 3a3e03f..a9f1750 100644
--- a/src/examples/RegisterServiceAgreementTemplates.ts
+++ b/src/examples/RegisterServiceAgreementTemplates.ts
@@ -1,7 +1,8 @@
 import {Account, Logger, Ocean, ServiceAgreementTemplate, Templates} from "../squid"
 import config from "./config"
+import {runner} from "./runner"
 
-(async () => {
+async function exec() {
     const ocean: Ocean = await Ocean.getInstance(config)
 
     const templateOwner: Account = (await ocean.getAccounts())[0]
@@ -11,6 +12,7 @@ import config from "./config"
 
     Logger.log("ServiceAgreementTemplate registered:", serviceAgreementRegistered,
         "templateId:", serviceAgreementTemplate.getId())
+}
+
+runner(exec)
 
-    process.exit(0)
-})()
diff --git a/src/examples/Search.ts b/src/examples/Search.ts
index 8f41312..edb9e89 100644
--- a/src/examples/Search.ts
+++ b/src/examples/Search.ts
@@ -1,8 +1,9 @@
 import DDO from "../ddo/DDO"
 import {Logger, Ocean} from "../squid"
 import config from "./config"
+import {runner} from "./runner"
 
-(async () => {
+async function exec() {
     const ocean: Ocean = await Ocean.getInstance(config)
 
     const result: DDO[] = await ocean.searchAssetsByText("Office Humidity")
@@ -14,6 +15,6 @@ import config from "./config"
     })
 
     Logger.log(names.length, names)
+}
 
-    process.exit(0)
-})()
+runner(exec)
diff --git a/src/examples/SignAgreement.ts b/src/examples/SignAgreement.ts
index 0b9d792..a1e8d2a 100644
--- a/src/examples/SignAgreement.ts
+++ b/src/examples/SignAgreement.ts
@@ -6,8 +6,9 @@ import MetaDataBase from "../ddo/MetaDataBase"
 import Service from "../ddo/Service"
 import {Account, Logger, Ocean} from "../squid"
 import config from "./config"
+import {runner} from "./runner"
 
-(async () => {
+async function exec() {
     const ocean: Ocean = await Ocean.getInstance(config)
 
     const publisher: Account = (await ocean.getAccounts())[0]
@@ -77,6 +78,6 @@ import config from "./config"
 
     Logger.log("ServiceAgreement Id:", serviceAgreementResult.serviceAgreementId)
     Logger.log("ServiceAgreement Signature:", serviceAgreementResult.serviceAgreementSignature)
+}
 
-    process.exit(0)
-})()
+runner(exec)
diff --git a/src/examples/runner.ts b/src/examples/runner.ts
new file mode 100644
index 0000000..2c9634f
--- /dev/null
+++ b/src/examples/runner.ts
@@ -0,0 +1,10 @@
+import {Logger} from "../squid"
+
+export function runner(fn: () => Promise<any>) {
+    fn()
+        .then(() => process.exit(0))
+        .catch((e) => {
+            Logger.warn(e)
+            process.exit(1)
+        })
+}
diff --git a/src/keeper/contracts/ContractBase.ts b/src/keeper/contracts/ContractBase.ts
index 1b23262..2dc88fc 100644
--- a/src/keeper/contracts/ContractBase.ts
+++ b/src/keeper/contracts/ContractBase.ts
@@ -63,8 +63,12 @@ export default abstract class ContractBase {
                     value: args[i],
                 }
             })
+            Logger.error("-".repeat(40))
             Logger.error(`Sending transaction "${name}" on contract "${this.contractName}" failed.`)
-            Logger.error(`Parameters: ${JSON.stringify(mappedArgs, null, 2)} from: ${from}`)
+            Logger.error(`Error: ${err.message}`)
+            Logger.error(`From: ${from}`)
+            Logger.error(`Parameters: ${JSON.stringify(mappedArgs, null, 2)}`)
+            Logger.error("-".repeat(40))
             throw err
         }
     }
diff --git a/src/ocean/ServiceAgreements/ServiceAgreementTemplate.ts b/src/ocean/ServiceAgreements/ServiceAgreementTemplate.ts
index ae6423d..d9ee5c4 100644
--- a/src/ocean/ServiceAgreements/ServiceAgreementTemplate.ts
+++ b/src/ocean/ServiceAgreements/ServiceAgreementTemplate.ts
@@ -58,15 +58,20 @@ export default class ServiceAgreementTemplate extends OceanBase {
             return false
         }
 
-        const receipt = await serviceAgreement
-            .setupAgreementTemplate(
-                this.template.id,
-                await this.getMethodReflections(),
-                dependencyMatrix,
-                Web3Provider.getWeb3().utils.fromAscii(this.template.templateName),
-                fulfillmentIndices,
-                this.template.fulfillmentOperator,
-                templateOwnerAddress)
+        let receipt
+        try {
+            receipt = await serviceAgreement
+                .setupAgreementTemplate(
+                    this.template.id,
+                    await this.getMethodReflections(),
+                    dependencyMatrix,
+                    Web3Provider.getWeb3().utils.fromAscii(this.template.templateName),
+                    fulfillmentIndices,
+                    this.template.fulfillmentOperator,
+                    templateOwnerAddress)
+        } catch (e) {
+            throw new Error(`Is not possible to setup the agreement template`)
+        }
 
         const {serviceTemplateId, provider} = receipt.events.SetupAgreementTemplate.returnValues