{"record":{"id":"e35475ce22d00b17","repo":"remotion-dev/remotion","slug":"could-not-insert-jsx-element","errorCode":null,"errorMessage":"Could not insert JSX element","messagePattern":"Could not insert JSX element","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/browser-studio/src/browser-studio-operations.ts","lineNumber":1976,"sourceCode":"\t\t\t\ttimelineSelection:\n\t\t\t\t\tresult.insertedNodePath === null\n\t\t\t\t\t\t? null\n\t\t\t\t\t\t: {\n\t\t\t\t\t\t\t\tabsolutePath: result.filePath,\n\t\t\t\t\t\t\t\tcompositionId: request.compositionId,\n\t\t\t\t\t\t\t\tnodePath: result.insertedNodePath,\n\t\t\t\t\t\t\t},\n\t\t\t\tfileName: result.filePath,\n\t\t\t\tmutate: () => result.project,\n\t\t\t\tnodePathMutationFiles: [\n\t\t\t\t\t{\n\t\t\t\t\t\tabsolutePath: result.filePath,\n\t\t\t\t\t\tremappings: result.nodePathRemappings,\n\t\t\t\t\t},\n\t\t\t\t],\n\t\t\t});\n\t\t\tif (nodePathMutation === null) {\n\t\t\t\tthrow new Error('Could not insert JSX element');\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\tsuccess: true,\n\t\t\t\tinsertedNodePath:\n\t\t\t\t\tresult.insertedNodePath === null\n\t\t\t\t\t\t? null\n\t\t\t\t\t\t: {\n\t\t\t\t\t\t\t\tabsolutePath: result.filePath,\n\t\t\t\t\t\t\t\tnodePath: result.insertedNodePath,\n\t\t\t\t\t\t\t},\n\t\t\t\tnodePathMutation,\n\t\t\t};\n\t\t} catch (error) {\n\t\t\treturn {\n\t\t\t\tsuccess: false,\n\t\t\t\treason: error instanceof Error ? error.message : String(error),\n\t\t\t\tstack: error instanceof Error && error.stack ? error.stack : '',","sourceCodeStart":1958,"sourceCodeEnd":1994,"githubUrl":"https://github.com/remotion-dev/remotion/blob/b2f4e34732f3c6c222ea029413e22dc402218cd7/packages/browser-studio/src/browser-studio-operations.ts#L1958-L1994","documentation":"Returned as `{success: false, reason}` by insertJsxElement (also exposed as insertSolid) in @remotion/browser-studio. Dependency resolution and the JSX insertion codemod succeeded and produced a new project, but `controller.applyMutation(...)` with node-path remappings returned null, so the change was not committed. Usually the file the insertion targeted is out of sync with the controller's tracked node-path state.","triggerScenarios":"Calling `insertJsxElement({element, fileName, position, ...})` while prior mutations have not been applied; passing a target file whose node-path tracking diverged; running insertions concurrently from two places.","commonSituations":"Inserting shapes/solids from a toolbar in an embedded editor; rapid double-insert where the second call computes state before the first is committed; project reloaded underneath a stale session.","solutions":["Await every mutation before computing inputs for the next one, then retry the insertion once","Re-derive the insertion target (file + position node) from current state","Check the response.success field and surface the reason to the user instead of assuming insertion happened","If reproducible on a fresh project, report it as a bug with the element payload"],"exampleFix":"// before\nconst res = await operations.insertJsxElement(request);\n\n// after\nconst res = await operations.insertJsxElement({\n  ...request,\n  fileName: await getCurrentFileName(), // fresh target\n});\nif (!res.success) {\n  showToast(res.reason); // 'Could not insert JSX element'\n  await resyncFromProject();\n}","handlingStrategy":"validation","validationCode":"const res = await operations.insertJsxElement(request);\nif (!res.success) {\n  await resyncFromProject();\n  showToast(res.reason);\n}","typeGuard":null,"tryCatchPattern":null,"preventionTips":["Serialize insertions and every other mutation through one queue","Refresh target file/position from current project state before each insert"],"tags":["jsx","insert","node-path","mutation","browser-studio"],"backgroundTag":"invalid-node-path","analyzedSha":"b2f4e34732f3c6c222ea029413e22dc402218cd7","analyzedAt":"2026-08-22T21:45:17.748Z","contentChangedAt":"2026-08-22T21:45:17.748Z","schemaVersion":2},"datasetVersion":"2026-09-14T00:17:10.932Z"}