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Cannot find definitions with baseUrl
Bug Report
🔎 Search Terms
typescript "cannot find a declaration file" baseurl
typescript "cannot find a declaration file" strace
"Could not find a declaration file for module 'marked'"
typescript yarn "--modules-folder"
typescript cant find definitions baseurl
typescript ignores typeroots
typescript can't find definitions from @types
typescript "cannot find a declaration file for module"
typescript "cannot find a declaration file for module" "baseurl"
🕗 Version & Regression Information
- This is the behavior in every version I tried, and I reviewed the FAQ for entries about imports
I tried 4.8.3 and typescript@next.
⏯ Playground Link
This is about module path resolution, so a playground link is not helpful.
💻 Code
src/index.ts
import { marked } from "marked";
.yarnrc
--modules-folder ../nm2
tsconfig.json
{
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"compilerOptions": {
"lib": ["DOM", "ES2018"],
"target": "ES2018",
"downlevelIteration": true,
"moduleResolution": "Node",
"strict": true,
"noImplicitAny": true,
"baseUrl": "../nm2",
"typeRoots": ["../nm2/@types"]
}
}
package.json
{
"dependencies": {
"idb": "^7.1.0",
"marked": "^4.1.0"
},
"devDependencies": {
"@types/marked": "^4.0.7",
"typescript": "^4.9.0-dev.20220921"
}
}
I tried with and without typeRoots.
🙁 Actual behavior
The build fails. Running with strace -e openat I see
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/bin/package.json", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/package.json", O_RDONLY|O_CLOEXEC) = 17
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/bin/tsc", O_RDONLY|O_CLOEXEC) = 17
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/tsc.js", O_RDONLY|O_CLOEXEC) = 17
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/package.json", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/dev/pts/34", O_RDWR|O_NOCTTY|O_CLOEXEC) = 17
openat(AT_FDCWD, "/dev/null", O_RDONLY|O_CLOEXEC) = 18
openat(AT_FDCWD, "my_working_dir.../6/tsconfig.json", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 19
openat(AT_FDCWD, "my_working_dir.../6/src", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 19
openat(AT_FDCWD, "my_working_dir.../6/src/index.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/marked/package.json", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/@types", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/@types/marked/package.json", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/@types/marked/index.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.dom.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2018.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2017.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2016.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2015.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es5.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2015.core.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2015.collection.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2015.iterable.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2015.symbol.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2015.generator.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2015.promise.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2015.proxy.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2015.reflect.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2015.symbol.wellknown.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2016.array.include.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2017.object.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2017.sharedmemory.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2017.string.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2017.intl.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2017.typedarrays.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2018.asynciterable.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2018.asyncgenerator.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2018.promise.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2018.regexp.d.ts", O_RDONLY|O_CLOEXEC) = 19
openat(AT_FDCWD, "my_working_dir.../nm2/typescript/lib/lib.es2018.intl.d.ts", O_RDONLY|O_CLOEXEC) = 19
src/index.ts:1:24 - error TS7016: Could not find a declaration file for module 'marked'. 'my_working_dir.../nm2/marked/lib/marked.cjs' implicitly has an 'any' type.
Try `npm i --save-dev @types/marked` if it exists or add a new declaration (.d.ts) file containing `declare module 'marked';`
1 import { marked } from "marked";
~~~~~~~~
Found 1 error.
+++ exited with 1 +++
6 is the directory with tsconfig.json.
Note that it actually finds and opens the marked definitions file above.
🙂 Expected behavior
It should compile fine.
Copying nm2 to node_modules in the tsconfig.json dir allows it to compile, it opens files in node_modules right after marked/package.json.
Another package, idb works fine (replacing the marked import with idb). idb has its own typings.
With typeRoots removed, it doesn't open any files in nm2/@types.
Tangentially, if nm2 is in the current directory (not the parent directory) I get the above error plus tons of Definitions of the following identifiers conflict with those in another file regarding various typescript internal symbols.
I get the feeling that typescript requires modules to be in node_modules, but I couldn't find anything in the documentation that suggests this so I continue to cling to hope.
Edit: Forgot package.json
I get the feeling that typescript requires modules to be in node_module
You specified moduleResolution: node in the tsconfig, and node requires modules to be in node_modules.
For this scenario, you'd need to use path mapping.
Firstly, thank you for looking into this!
That doesn't make a lot of sense to me, the documentation clearly states
All module imports with non-relative names are assumed to be relative to the baseUrl.
not relative to node_modules directly underneath baseUrl. There's no additional notes regarding baseUrl in either the Node nor Classic sections.
Furthermore it's locating the JS marked package, just not the typings (which are a TypeScript specific thing anyway, especially the @types directory, so I wouldn't expect that to be affected module resolutions).
After digging some more I found the --traceResolution flag and have some more output (here's the full output):
======== Resolving module 'marked' from 'MY_PARENT_DIR/6/src/index.ts'. ========
Explicitly specified module resolution kind: 'NodeJs'.
'baseUrl' option is set to 'MY_PARENT_DIR/nm2', using this value to resolve non-relative module name 'marked'.
Resolving module name 'marked' relative to base url 'MY_PARENT_DIR/nm2' - 'MY_PARENT_DIR/nm2/marked'.
Loading module as file / folder, candidate module location 'MY_PARENT_DIR/nm2/marked', target file type 'TypeScript'.
File 'MY_PARENT_DIR/nm2/marked.ts' does not exist.
File 'MY_PARENT_DIR/nm2/marked.tsx' does not exist.
File 'MY_PARENT_DIR/nm2/marked.d.ts' does not exist.
Found 'package.json' at 'MY_PARENT_DIR/nm2/marked/package.json'.
'package.json' does not have a 'typesVersions' field.
'package.json' does not have a 'typings' field.
'package.json' does not have a 'types' field.
'package.json' has 'main' field './lib/marked.cjs' that references 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs'.
File 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs' exist - use it as a name resolution result.
File 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs' has an unsupported extension, so skipping it.
Loading module as file / folder, candidate module location 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs', target file type 'TypeScript'.
File 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs.ts' does not exist.
File 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs.tsx' does not exist.
File 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs.d.ts' does not exist.
File name 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs' has a '.cjs' extension - stripping it.
File 'MY_PARENT_DIR/nm2/marked/lib/marked.cts' does not exist.
File 'MY_PARENT_DIR/nm2/marked/lib/marked.d.cts' does not exist.
Directory 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs' does not exist, skipping all lookups in it.
File 'MY_PARENT_DIR/nm2/marked/index.ts' does not exist.
File 'MY_PARENT_DIR/nm2/marked/index.tsx' does not exist.
File 'MY_PARENT_DIR/nm2/marked/index.d.ts' does not exist.
Loading module 'marked' from 'node_modules' folder, target file type 'TypeScript'.
Directory 'MY_PARENT_DIR/6/src/node_modules' does not exist, skipping all lookups in it.
Directory 'MY_PARENT_DIR/6/node_modules' does not exist, skipping all lookups in it.
Directory 'MY_PARENT_DIR/node_modules' does not exist, skipping all lookups in it.
Directory 'MY_PARENT_DIR^1/node_modules' does not exist, skipping all lookups in it.
File 'MY_PARENT_DIR^2/node_modules/marked.ts' does not exist.
File 'MY_PARENT_DIR^2/node_modules/marked.tsx' does not exist.
File 'MY_PARENT_DIR^2/node_modules/marked.d.ts' does not exist.
Directory 'MY_PARENT_DIR^2/node_modules/@types' does not exist, skipping all lookups in it.
Directory 'MY_PARENT_DIR^3/node_modules' does not exist, skipping all lookups in it.
Directory '/home/node_modules' does not exist, skipping all lookups in it.
Directory '/node_modules' does not exist, skipping all lookups in it.
'baseUrl' option is set to 'MY_PARENT_DIR/nm2', using this value to resolve non-relative module name 'marked'.
Resolving module name 'marked' relative to base url 'MY_PARENT_DIR/nm2' - 'MY_PARENT_DIR/nm2/marked'.
Loading module as file / folder, candidate module location 'MY_PARENT_DIR/nm2/marked', target file type 'JavaScript'.
File 'MY_PARENT_DIR/nm2/marked.js' does not exist.
File 'MY_PARENT_DIR/nm2/marked.jsx' does not exist.
File 'MY_PARENT_DIR/nm2/marked/package.json' exists according to earlier cached lookups.
'package.json' has 'main' field './lib/marked.cjs' that references 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs'.
File 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs' exist - use it as a name resolution result.
======== Module name 'marked' was successfully resolved to 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs' with Package ID 'marked/lib/[email protected]'. ========
======== Resolving type reference directive 'marked', containing file 'MY_PARENT_DIR/6/__inferred type names__.ts', root directory 'MY_PARENT_DIR/nm2/@types'. ========
Resolving with primary search path 'MY_PARENT_DIR/nm2/@types'.
Found 'package.json' at 'MY_PARENT_DIR/nm2/@types/marked/package.json'.
'package.json' does not have a 'typesVersions' field.
'package.json' does not have a 'typings' field.
'package.json' has 'types' field 'index.d.ts' that references 'MY_PARENT_DIR/nm2/@types/marked/index.d.ts'.
File 'MY_PARENT_DIR/nm2/@types/marked/index.d.ts' exist - use it as a name resolution result.
Resolving real path for 'MY_PARENT_DIR/nm2/@types/marked/index.d.ts', result 'MY_PARENT_DIR/nm2/@types/marked/index.d.ts'.
======== Type reference directive 'marked' was successfully resolved to 'MY_PARENT_DIR/nm2/@types/marked/index.d.ts' with Package ID '@types/marked/[email protected]', primary: true. ========
src/index.ts:2:24 - error TS7016: Could not find a declaration file for module 'marked'. 'MY_PARENT_DIR/nm2/marked/lib/marked.cjs' implicitly has an 'any' type.
Try `npm i --save-dev @types/marked` if it exists or add a new declaration (.d.ts) file containing `declare module 'marked';`
2 import { marked } from "marked";
~~~~~~~~
Found 1 error.
This is strange, since it's clearly identifying the typings file here:
======== Type reference directive 'marked' was successfully resolved to 'MY_PARENT_DIR/nm2/@types/marked/index.d.ts' with Package ID '@types/marked/[email protected]', primary: true. ========
This was with baseUrl and typeRoots provided as above.
It's not clear to me how paths would resolve this or how it could be used. My reading from the documentation is that it's a way to override the lookup for specific individual packages in odd locations (and it's not indicated in the documentation if/how this affects type lookups). If so this would be a nonstandard use of the parameter in a non-intuitive way.
I tried:
"paths": {
"*": ["*"]
}
in addition to the above config. This didn't work (found js, not types), and looks pointless (i.e. look where you're already looking).
I also tried
"paths": {
"*": ["../nm2/*"]
}
without baseUrl or typeRoots and that also failed (same as above - located js, not types).
This issue has been marked as 'Question' and has seen no recent activity. It has been automatically closed for house-keeping purposes. If you're still waiting on a response, questions are usually better suited to stackoverflow or the TypeScript Discord community.
