{"record":{"id":"2c431fbca60d9254","repo":"nodejs/node","slug":"an-error-occurred-processing-file-s-error-s-2c431f","errorCode":null,"errorMessage":"An error occurred processing file %s. Error: %s","messagePattern":"An error occurred processing file (.+?)\\. Error: (.+?)","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"deps/icu-small/source/tools/genrb/parse.cpp","lineNumber":767,"sourceCode":"            if(inputDir[dirlen-1] != U_FILE_SEP_CHAR) {\n                openFileName.append(U_FILE_SEP_CHAR, errorCode);\n            }\n        }\n    }\n    openFileName.append(filename, errorCode);\n    if(U_FAILURE(errorCode)) {\n        return;\n    }\n    // printf(\"GenrbImporter::getRules(%s, %s) reads %s\\n\", localeID, collationType, openFileName.data());\n    const char* cp = \"\";\n    LocalUCHARBUFPointer ucbuf(\n            ucbuf_open(openFileName.data(), &cp, getShowWarning(), true, &errorCode));\n    if(errorCode == U_FILE_ACCESS_ERROR) {\n        fprintf(stderr, \"couldn't open file %s\\n\", openFileName.data());\n        return;\n    }\n    if (ucbuf.isNull() || U_FAILURE(errorCode)) {\n        fprintf(stderr, \"An error occurred processing file %s. Error: %s\\n\", openFileName.data(), u_errorName(errorCode));\n        return;\n    }\n\n    /* Parse the data into an SRBRoot */\n    LocalPointer<SRBRoot> data(\n            parse(ucbuf.getAlias(), inputDir, outputDir, filename.data(), false, false, false, &errorCode));\n    if (U_FAILURE(errorCode)) {\n        return;\n    }\n\n    struct SResource *root = data->fRoot;\n    struct SResource *collations = resLookup(root, \"collations\");\n    if (collations != nullptr) {\n      struct SResource *collation = resLookup(collations, collationType);\n      if (collation != nullptr) {\n        struct SResource *sequence = resLookup(collation, \"Sequence\");\n        if (sequence != nullptr && sequence->isString()) {\n          // No string pointer aliasing so that we need not hold onto the resource bundle.","sourceCodeStart":749,"sourceCodeEnd":785,"githubUrl":"https://github.com/nodejs/node/blob/1b2de5e052fc0fb95fd7fb6846dcec4ade598e9e/deps/icu-small/source/tools/genrb/parse.cpp#L749-L785","documentation":"During collation rule import, ucbuf_open returned a non-null failure code other than U_FILE_ACCESS_ERROR, or returned a null UCHARBUF pointer. This is the generic processing-error counterpart to error 784: the file was found but could not be read or decoded. The error message includes the specific u_errorName for diagnosis.","triggerScenarios":"ucbuf_open succeeds in finding the file but fails during encoding detection or BOM processing (U_INVALID_CHAR_FOUND, U_UNSUPPORTED_ERROR); the file is empty or truncated; the detected encoding is unsupported; or the UCHARBUF allocation fails internally. This is the catch-all for ucbuf_open failures that are not simple file-not-found.","commonSituations":"File corrupted during git transfer or copy; encoding mismatch (file is Shift-JIS but auto-detected as UTF-8); empty file left by a failed previous build step; BOM corruption; ICU version mismatch where encoding detection behavior changed.","solutions":["Read the u_errorName code in the message to identify the specific failure (e.g. U_INVALID_CHAR_FOUND = encoding issue)","Check the file is not empty or truncated: `wc -c <filename>`","Verify encoding and BOM: `file --mime-encoding <filename>` and `xxd <filename> | head -1`","If the encoding is wrong, add or fix the BOM, or convert the file to UTF-8","Re-download or re-checkout the file from source control to eliminate corruption"],"exampleFix":null,"handlingStrategy":"validation","validationCode":"# Validate file encoding and integrity before genrb processes it\nFILE=\"./data/en_US.txt\"\n# Check file is not empty\n[ -s \"$FILE\" ] || echo \"ERROR: $FILE is empty\"\n# Check encoding\nENC=$(file --mime-encoding \"$FILE\" | awk '{print $NF}')\necho \"Encoding: $ENC\"\n# Check for BOM\nxxd \"$FILE\" | head -1 | grep -q 'efbb bf' && echo \"Has UTF-8 BOM\" || echo \"No BOM\"\n# Validate UTF-8 if claimed\n[ \"$ENC\" = \"utf-8\" ] && iconv -f UTF-8 -t UTF-8 \"$FILE\" > /dev/null 2>&1 || echo \"ERROR: invalid UTF-8\"","typeGuard":null,"tryCatchPattern":null,"preventionTips":["Ensure all resource bundle files are valid UTF-8 before processing","Check files for corruption after transfers between systems","Verify files are not empty or truncated after failed build steps","Use consistent encoding (UTF-8 with or without BOM) across all resource bundle files"],"tags":["icu","genrb","collation","encoding","ucbuf"],"backgroundTag":null,"analyzedSha":"1b2de5e052fc0fb95fd7fb6846dcec4ade598e9e","analyzedAt":"2026-08-13T00:53:24.642Z","schemaVersion":2},"datasetVersion":"2026-08-13T04:17:16.726Z"}