No matching version found for @eclipse-glsp/layout-elk@0.9.0

[gee4vee]

I am trying to run npm install from within the glsp-server-node/examples/workflow-server directory but I get this error:

~/g/e/g/e/workflow-server [main]{0} ⛅» npm install                                                                                                                       {15:13:18}
npm ERR! code ETARGET
npm ERR! notarget No matching version found for @eclipse-glsp/layout-elk@0.9.0.
npm ERR! notarget In most cases you or one of your dependencies are requesting
npm ERR! notarget a package version that doesn't exist.

Is this the correct approach? Should I be running from the root project directory?

This error also leads me to wonder how one would create their own server. Do we just have something like what's within the examples/workflow-server directory or do we need to also include the contents of the glsp-server-node directory?

[tortmayr]

Hi @gee4vee ,

Is this the correct approach? Should I be running from the root project directory?

We are using yarn as package manager. So npm install probably wont work.
You can build all packages by executing yarn in the package root.
If you just want to build the example server you can execute yarn build from within glsp-server-node/examples/workflow-server.

This error also leads me to wonder how one would create their own server. Do we just have something like what's within the examples/workflow-server directory or do we need to also include the contents of the glsp-server-node directory?

If you want to create your own server you would have to implement a package similar to the examples/workflow-server. You don't need the contents of the glsp-server-node directory. In your own example these packages can be consumed via npm.

We have started working on the node based glsp-server pretty recently which means there is no official release yet. If you wan to create your own server you can to use the next versions from npm for now. So you would have to change the dependencies in the package.json of you server package:

// from
{
...
  "dependencies": {
    "@eclipse-glsp/server-node": "0.9.0",
    "@eclipse-glsp/layout-elk": "0.9.0"
  },
}

// to
{
...
  "dependencies": {
    "@eclipse-glsp/server-node": "next", // or a concrete next version e.g. `0.9.0-next.95961ba.7`
    "@eclipse-glsp/layout-elk": "next" 
  },
}

[gee4vee]

Thanks!

[gee4vee]

Another question @tortmayr ... after doing yarn build within examples/workflow-server, I see errors throughout the code about experimental decorator support and things like Accessors are only available when targeting ECMAScript 5 and higher. I set experimentalDecorators to true in tsconfig.json and rebuilt but no change. What should we do to get VS Code errors like these to resolve?

[tortmayr]

Could you please post a code snipped of your ts.config? This makes it easier for us to identify potential issues.

[gee4vee]

I made a copy of the workflow-server project as a starting point and most of those went away. However still seeing this error in tsconfig.json:

Cannot find type definition file for 'mocha'.
  The file is in the program because:
    Entry point of type library 'mocha' specified in compilerOptions

Here is my file:

{
  "extends": "@eclipse-glsp/ts-config/tsconfig.json",
  "compilerOptions": {
    "rootDir": "src",
    "outDir": "lib",
    "reactNamespace": "JSX",
    "baseUrl": ".",
    "types": ["node", "mocha", "reflect-metadata"],
    "experimentalDecorators": true
  },
  "include": ["src"],
  "exclude": ["**/*.spec.ts"]
}

[gee4vee]

Correction: still seeing the error Accessors are only available when targeting ECMAScript 5 and higher. in a couple places with above tsconfig.json.