yaml-language-server fails for yaml version

[mosheavni]

Describe the bug

I'm using nvim LSP to run yaml-language-server with schema store.
When the server starts, with minimal configuration, I see this error:

[DEBUG][2022-05-14 14:30:22] .../vim/lsp/rpc.lua:454	"rpc.receive"	{
  jsonrpc = "2.0",
  method = "telemetry/event",
  params = {
    name = "yaml.validation.error",
    properties = "Error: Expected '1.1', '1.2' or null as first argument, but found: undefined\n    at Document.setSchema (/Users/mavni/Repos/yaml-language-server/node_modules/yaml/dist/doc/Document.js:273:23)\n    at new Document (/Users/mavni/Repos/yaml-language-server/node_modules/yaml/dist/doc/Document.js:53:14)\n    at Object.composeDoc (/Users/mavni/Repos/yaml-language-server/node_modules/yaml/dist/compose/compose-doc.js:10:17)\n    at Composer.next (/Users/mavni/Repos/yaml-language-server/node_modules/yaml/dist/compose/composer.js:149:40)\n    at next (<anonymous>)\n    at Composer.compose (/Users/mavni/Repos/yaml-language-server/node_modules/yaml/dist/compose/composer.js:131:25)\n    at compose.next (<anonymous>)\n    at Function.from (<anonymous>)\n    at Object.parse (/Users/mavni/Repos/yaml-language-server/out/server/src/languageservice/parser/yamlParser07.js:45:28)\n    at YamlDocuments.ensureCache (/Users/mavni/Repos/yaml-language-server/out/server/src/languageservice/parser/yaml-documents.js:224:40)",
    type = "track"
  }
}

Expected Behavior

Schema validation and completion to work

Steps to Reproduce

1. Download these files:

curl -fLO https://gist.githubusercontent.com/mosheavni/2149542454c7af89b6eac940ee7a56e3/raw/e7fe9aec16da657f64a6264f500ca9cadfbe0198/minimal_init.lua
curl -fLO https://gist.githubusercontent.com/mosheavni/e92e9b2baf96e928f6d46b10dd7d1e0d/raw/b13b78fe64bf788d174dd06246cfafb5481de3c2/pod.yaml

2. Change the cmd (line 70) in minimal_init.lua to reflect the language server location on your machine

3. Run nvim (version 0.7 at least):

nvim -nu minimal_init.lua pod.yaml

4. See the error by reading this file:

$ grep "or null" $HOME/.cache/nvim/lsp.log
    properties = "Error: Expected '1.1', '1.2' or null as first argument, but found: undefined
    at Document.setSchema (/Users/mavni/Repos/yaml-language-server/node_modules/yaml/dist/doc/Document.js:273:23)
    at new Document (/Users/mavni/Repos/yaml-language-server/node_modules/yaml/dist/doc/Document.js:53:14)
    at Object.composeDoc (/Users/mavni/Repos/yaml-language-server/node_modules/yaml/dist/compose/compose-doc.js:10:17)
    at Composer.next (/Users/mavni/Repos/yaml-language-server/node_modules/yaml/dist/compose/composer.js:149:40)
    at next (<anonymous>)
    at Composer.compose (/Users/mavni/Repos/yaml-language-server/node_modules/yaml/dist/compose/composer.js:131:25)
    at compose.next (<anonymous>)
    at Function.from (<anonymous>)
    at Object.parse (/Users/mavni/Repos/yaml-language-server/out/server/src/languageservice/parser/yamlParser07.js:45:28)
    at YamlDocuments.ensureCache (/Users/mavni/Repos/yaml-language-server/out/server/src/languageservice/parser/yaml-documents.js:224:40)",

Settings

settings = {
  yamlVersion = "1.2",
  disableDefaultProperties = true,
  hover = true,
  trace = {
    server = "verbose"
  },
  completion = true,
  format = {
    enable = true
  },
  validate = true,
  schemaStore = {
    enable = true,
    url = "https://www.schemastore.org/api/json/catalog.json"
  },
  schemas = {
    kubernetes = { '*' }
  }
}

Environment

• Windows
• Mac
• Linux
• other (please specify)