Running Orval throws a SyntaxError: Unexpected token ':' error

Question

When installing orval and attempting to simply run it, I get this error:

Error compiling schema, function code: const schema16 = scope.schema[10];return function validate14(data, {instancePath="", parentData, parentDataProperty, rootData=data}={}){let vErrors = null;let errors = 0;if((!(data && typeof data == "object" && !Array.isArray(data))) && (data !== null)){const err0 = {instancePath,schemaPath:"#/type",keyword:"type",params:{type: schema16.type},message:"must be object,null"};if(vErrors === null){vErrors = [err0];}else {vErrors.push(err0);}errors++;}if(data && typeof data == "object" && !Array.isArray(data)){for(const key0 in data){if(!(key0 === "keyedBy")){const err1 = {instancePath,schemaPath:"#/additionalProperties",keyword:"additionalProperties",params:{additionalProperty: key0},message:"must NOT have additional properties"};if(vErrors === null){vErrors = [err1];}else {vErrors.push(err1);}errors++;}}if(data.keyedBy !== undefined){if(typeof data.keyedBy !== "string"){const err2 = {instancePath:instancePath+"/keyedBy",schemaPath:"#/properties/keyedBy/type",keyword:"type",params:{type: "string"},message:"must be string"};if(vErrors === null){vErrors = [err2];}else {vErrors.push(err2);}errors++;}}}if(errors > 0){const emErrors0 = {"type":[]};for(const err3 of vErrors){if(((((({"str":"err3"}.keyword !== "errorMessage") && (!{"str":"err3"}.emUsed)) && ({"str":"err3"}.instancePath === instancePath)) && ({"str":"err3"}.keyword in {"str":"emErrors0"})) && ({"str":"err3"}.schemaPath.indexOf("#") === 0)) && (/^\/[^\/]*$/.test({"str":"err3"}.schemaPath.slice(1)))){{"str":"emErrors0"}[{"str":"err3"}.keyword].push({"str":"err3"});{"str":"err3"}.emUsed = true;}}for(const key1 in emErrors0){if({"str":"emErrors0"}[{"str":"key1"}].length){if(vErrors === null){vErrors = [{"str":"err4"}];}else {vErrors.push({"str":"err4"});}errors++;}}const emErrs0 = [];for(const err5 of vErrors){if(!{"str":"err5"}.emUsed){{"str":"emErrs0"}.push({"str":"err5"});}}vErrors = emErrs0;errors = {"str":"emErrs0"}.length;}validate14.errors = vErrors;return errors === 0;}
~/node_modules/@stoplight/spectral-core/node_modules/ajv/dist/compile/index.js:125
        throw e;
        ^

SyntaxError: Unexpected token ':'
    at new Function (<anonymous>)
    at Ajv.compileSchema (~/node_modules/@stoplight/spectral-core/node_modules/ajv/dist/compile/index.js:92:30)
    at Ajv._compileSchemaEnv (~/node_modules/@stoplight/spectral-core/node_modules/ajv/dist/core.js:473:37)
    at Ajv.compile (~/node_modules/@stoplight/spectral-core/node_modules/ajv/dist/core.js:160:38)
    at createRulesetFunction (~/node_modules/@stoplight/spectral-core/dist/ruleset/function.js:68:80)
    at Object.<anonymous> (~/node_modules/@stoplight/spectral-functions/dist/alphabetical.js:30:61)
    at Module._compile (node:internal/modules/cjs/loader:1546:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1691:10)
    at Module.load (node:internal/modules/cjs/loader:1317:32)
    at Module._load (node:internal/modules/cjs/loader:1127:12)

I replaced the path to node_modules with ~ just so my directory structure wasn't included but otherwise left it the same.

running on a mac, with bun, in a vite, typescript, react project.

I have tried adding a orval.config.ts, and swapping between it being .ts and .js and tried with no config. Both give the same result. Also tried bunx orval and also added it as a script in package.json "orval": "orval --config ./orval.config.ts".

I found https://github.com/stoplightio/spectral/issues/2693 which seems to be referencing basically the same issue but directly related to stoplightio/spectral which orval relies on. Going to try downgrading orval further but seemed to have the issue on any 7. package version.

Any help is appreciated.

Answer 1

For now, there is no fix for this issue. You need to install the latest version of AJV dependency as Orval is still using an old version.

For me, npm i -D ajv@latest did the trick

Check this related issue for the fix : https://github.com/orval-labs/orval/issues/1454