After installation of DAML 2 i'm not getting execution line in "daml script" in VC under Windows only

Questions
,
1

Hi there,

After upgrading to DAML 2.0 from 1.18.1.

When writing a script in VC under windows , I’m not getting the grey line above which executes the script

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Thanks

2

Can you check which daml extension you have installed? You can find the name and version in the vscode extension settings.

3

Hi @cocreature

I have the 2.0 extension but i see it has a runtime error (“Connection to server got closed. Server will not be restarted.”).
Maybe i need to install local Canton?

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image1234×462 51.8 KB

4

No, that should not be the issue. Can you go back to your daml file and then open View → Output → select “Daml language server” in the drop down at the bottom right and show the output?

5

Many errors which i wasn’t aware of it:


2022-03-10 18:20:31.75 [DEBUG]  [LanguageServer ScenarioService] 
Starting scenario service...

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: Exception in thread "main" java.lang.UnsupportedClassVersionError: com/daml/grpc/adapter/ExecutionSequencerFactory has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.defineClass1(Native Method)

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.defineClass(ClassLoader.java:756)

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.access$100(URLClassLoader.java:74)

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader$1.run(URLClassLoader.java:369)

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader$1.run(URLClassLoader.java:363)

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.security.AccessController.doPrivileged(Native Method)

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.findClass(URLClassLoader.java:362)

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.loadClass(ClassLoader.java:418)

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.loadClass(ClassLoader.java:351)

2022-03-10 18:20:34.67 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at com.daml.lf.scenario.ScenarioServiceMain.main(ScenarioServiceMain.scala)

2022-03-10 18:20:34.67 [INFO]  [LanguageServer] 
Flushed 0 logs
damlc: user error (Stdout of scenario service terminated before we got the PORT=<port> message)
[Info  - 8:20:34 PM] Connection to server got closed. Server will restart.

2022-03-10 18:20:34.77 [DEBUG]  [LanguageServer ScenarioService] 
Starting scenario service...

2022-03-10 18:20:37.68 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: Exception in thread "main" java.lang.UnsupportedClassVersionError: com/daml/grpc/adapter/ExecutionSequencerFactory has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

2022-03-10 18:20:37.68 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.defineClass1(Native Method)

2022-03-10 18:20:37.68 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.defineClass(ClassLoader.java:756)

2022-03-10 18:20:37.68 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

2022-03-10 18:20:37.68 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)

2022-03-10 18:20:37.68 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.access$100(URLClassLoader.java:74)

2022-03-10 18:20:37.68 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader$1.run(URLClassLoader.java:369)

2022-03-10 18:20:37.68 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader$1.run(URLClassLoader.java:363)

2022-03-10 18:20:37.68 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.security.AccessController.doPrivileged(Native Method)

2022-03-10 18:20:37.68 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.findClass(URLClassLoader.java:362)

2022-03-10 18:20:37.68 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.loadClass(ClassLoader.java:418)

2022-03-10 18:20:37.68 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)

2
2022-03-10 18:20:37.68 [INFO]  [LanguageServer] 
Flushed 0 logs
damlc: user error (Stdout of scenario service terminated before we got the PORT=<port> message)
[Info  - 8:20:37 PM] Connection to server got closed. Server will restart.

2022-03-10 18:20:38.88 [DEBUG]  [LanguageServer ScenarioService] 
Starting scenario service...

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: Exception in thread "main" java.lang.UnsupportedClassVersionError: com/daml/grpc/adapter/ExecutionSequencerFactory has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.defineClass1(Native Method)

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.defineClass(ClassLoader.java:756)

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.access$100(URLClassLoader.java:74)

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader$1.run(URLClassLoader.java:369)

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader$1.run(URLClassLoader.java:363)

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.security.AccessController.doPrivileged(Native Method)

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.findClass(URLClassLoader.java:362)

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.loadClass(ClassLoader.java:418)

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.loadClass(ClassLoader.java:351)

2022-03-10 18:20:41.77 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at com.daml.lf.scenario.ScenarioServiceMain.main(ScenarioServiceMain.scala)

2022-03-10 18:20:41.79 [INFO]  [LanguageServer] 
Flushed 0 logs
damlc: user error (Stdout of scenario service terminated before we got the PORT=<port> message)
[Info  - 8:20:41 PM] Connection to server got closed. Server will restart.

2022-03-10 18:20:41.88 [DEBUG]  [LanguageServer ScenarioService] 
Starting scenario service...

2022-03-10 18:20:45.60 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: Exception in thread "main" java.lang.UnsupportedClassVersionError: com/daml/grpc/adapter/ExecutionSequencerFactory has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

2022-03-10 18:20:45.60 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.defineClass1(Native Method)

2022-03-10 18:20:45.60 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.defineClass(ClassLoader.java:756)

2022-03-10 18:20:45.60 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

2022-03-10 18:20:45.60 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)

2022-03-10 18:20:45.60 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.access$100(URLClassLoader.java:74)

2022-03-10 18:20:45.61 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader$1.run(URLClassLoader.java:369)

2022-03-10 18:20:45.61 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader$1.run(URLClassLoader.java:363)

2022-03-10 18:20:45.61 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.security.AccessController.doPrivileged(Native Method)

2022-03-10 18:20:45.61 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.findClass(URLClassLoader.java:362)

2022-03-10 18:20:45.61 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.loadClass(ClassLoader.java:418)

2022-03-10 18:20:45.61 [ERROR]  [LanguageServer ScenarioService] 

2022-03-10 18:20:45.61 [INFO]  [LanguageServer] 
Flushed 0 logs
damlc: user error (Stdout of scenario service terminated before we got the PORT=<port> message)
[Info  - 8:20:45 PM] Connection to server got closed. Server will restart.

2022-03-10 18:20:45.72 [DEBUG]  [LanguageServer ScenarioService] 
Starting scenario service...

2022-03-10 18:20:49.14 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: Exception in thread "main" java.lang.UnsupportedClassVersionError: com/daml/grpc/adapter/ExecutionSequencerFactory has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

2022-03-10 18:20:49.14 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.defineClass1(Native Method)

2022-03-10 18:20:49.14 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.lang.ClassLoader.defineClass(ClassLoader.java:756)

2022-03-10 18:20:49.14 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

2022-03-10 18:20:49.14 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)

2022-03-10 18:20:49.14 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader.access$100(URLClassLoader.java:74)

2022-03-10 18:20:49.14 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader$1.run(URLClassLoader.java:369)

2022-03-10 18:20:49.14 [ERROR]  [LanguageServer ScenarioService] 
SCENARIO SERVICE STDERR: 	at java.net.URLClassLoader$1.run(URLClassLoader.java:363)

2022-03-10 18:20:49.14 [ERROR]  [LanguageServer ScenarioService] 

2022-03-10 18:20:49.17 [INFO]  [LanguageServer] 
Flushed 0 logs
damlc: user error (Stdout of scenario service terminated before we got the PORT=<port> message)
[Error - 8:20:49 PM] Connection to server got closed. Server will not be restarted.
6

I tried re-installing the extension but it didnt help…

7

I see that i’m running Java 8. I’ll upgrade to 11 and update.

Do you know why the release page state for Oracle and Postgre DB’s local installations? I didn’t have such in 1.18.1 and i’m pretty sure DA wont expect developers to install such for using the SDK

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8

Ok, issue solved after java was upgraded to 11

Thanks @cocreature

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1 Like
9

@liav The DB requirements are for production usage. When you use the DBs as backing store for your participant node.

1 Like