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The linker tools LINK, LIB, DUMPBIN, and EDITBIN share a common executable that generates these errors and warnings. The tools generate warnings of the form LNKxxxx, where xxxx is a four-digit number.
Important
The Visual Studio compilers and build tools can report many kinds of errors and warnings. After an error or warning is found, the build tools may make assumptions about code intent and attempt to continue, so that more issues can be reported at the same time. If the tools make the wrong assumption, later errors or warnings may not apply to your project. When you correct issues in your project, always start with the first error or warning that's reported, and rebuild often. One fix may resolve multiple subsequent errors.
To get help on a particular diagnostic message in Visual Studio, select it in the Output window and press the F1 key. Visual Studio opens the documentation page for that error, if one exists. You can also use the search tool at the top of the page to find articles about specific errors or warnings. Or, browse the list of errors and warnings by tool and type in the table of contents on this page.
Note
Not every Visual Studio error or warning is documented. In many cases, the diagnostic message provides all of the information that's available. If you landed on this page and think the error or warning message needs additional explanation, let us know by using the feedback buttons on this page. If you think the error or warning is wrong, or you've found another problem with the toolset, report a product issue on the Developer Community site. You can also send feedback and enter bugs within the IDE. In Visual Studio, go to the menu bar and choose Help > Send Feedback > Report a Problem, or submit a suggestion by using Help > Send Feedback > Suggest a Feature. Some compiler error topics were created that are not emitted by the compiler and now redirect to this page instead.
You may find additional assistance for errors and warnings in Microsoft Q&A C++ forums. Or, search for the error or warning number on the Visual Studio C++ Developer Community site. You can also search Stack Overflow to find solutions.
For links to additional help and community resources, see Visual C++ Help and Community.
Linker tools errors
| Error | Message |
|---|---|
| Linker Tools Error LNK1000 | unknown error; consult documentation for technical support options |
| Linker Tools Error LNK1103 | debugging information corrupt; recompile module |
| Linker Tools Error LNK1104 | cannot open file 'filename' |
| Linker Tools Error LNK1106 | invalid file or disk full: cannot seek to location |
| Linker Tools Error LNK1107 | invalid or corrupt file: cannot read at location address |
| Linker Tools Error LNK1112 | module machine type 'type1' conflicts with target machine type 'type2' |
| Linker Tools Error LNK1113 | invalid machine type type |
| Linker Tools Error LNK1120 | number unresolved externals |
| Linker Tools Error LNK1123 | failure during conversion to COFF: file invalid or corrupt |
| Linker Tools Error LNK1127 | library is corrupt |
| Linker Tools Error LNK1136 | invalid or corrupt file |
| Linker Tools Error LNK1140 | too many modules for program database; link with /PDB:NONE |
| Linker Tools Error LNK1141 | failure during build of exports file |
| Linker Tools Error LNK1143 | invalid or corrupt file: no symbol for COMDAT section number |
| Linker Tools Error LNK1152 | cannot resolve one or more undecorated symbols |
| Linker Tools Error LNK1158 | cannot run 'filename' |
| Linker Tools Error LNK1164 | section section alignment (number) greater than /ALIGN value |
| Linker Tools Error LNK1166 | cannot adjust code at offset=offset, va=value |
| Linker Tools Error LNK1168 | cannot open filename for writing |
| Linker Tools Error LNK1169 | one or more multiply defined symbols found |
| Linker Tools Error LNK1170 | line in command file contains maximum-length or more characters |
| Linker Tools Error LNK1179 | invalid or corrupt file: duplicate COMDAT 'filename' |
| Linker Tools Error LNK1181 | cannot open input file 'filename' |
| Linker Tools Error LNK1188 | BADFIXUPSECTION:: invalid fixup target 'symbol'; possible zero length section |
| Linker Tools Error LNK1189 | LIBTOOMANYMEMBERS:: library limit of number objects exceeded |
| Linker Tools Error LNK1196 | invalid or corrupt import object: unknown version |
| Linker Tools Error LNK1200 | error reading program database 'filename' |
| Linker Tools Error LNK1201 | error writing to program database 'filename'; check for insufficient disk space, invalid path, or insufficient privilege |
| Linker Tools Error LNK1211 | precompiled type information not found; 'filename' not linked or overwritten |
| Linker Tools Error LNK1215 | metadata operation failed (HRESULT) : error |
| Linker Tools Error LNK1218 | warning treated as error; no output file generated |
| Linker Tools Error LNK1221 | a subsystem can't be inferred and must be defined |
| Linker Tools Error LNK1223 | invalid or corrupt file: file contains invalid .pdata contributions |
| Linker Tools Error LNK1224 | invalid image base address |
| Linker Tools Error LNK1237 | during code generation, compiler introduced reference to symbol 'symbol' defined in module 'module' compiled with /GL |
| Linker Tools Error LNK1240 | failed to compile IDL content |
| Linker Tools Error LNK1241 | resource file 'resource file' already specified |
| Linker Tools Error LNK1245 | invalid subsystem 'subsystem' specified; /SUBSYSTEM must be WINDOWS, WINDOWSCE, or CONSOLE |
| Linker Tools Error LNK1248 | image size ('output_size') exceeds maximum allowable size (maximum_size) |
| Linker Tools Error LNK1256 | ALINK operation failed : reason |
| Linker Tools Error LNK1264 | /LTCG:PGINSTRUMENT specified but no code generation required; instrumentation failed |
| Linker Tools Error LNK1277 | object record not found in pgd (filename) |
| Linker Tools Error LNK1282 | unable to /REBASE file; it has been signed |
| Linker Tools Error LNK1287 | invalid managed entry point function |
| Linker Tools Error LNK1296 | unable to load filename |
| Linker Tools Error LNK1301 | LTCG clr modules found, incompatible with /LTCG:parameter |
| Linker Tools Error LNK1302 | only support linking safe .netmodules; unable to link file .netmodule |
| Linker Tools Error LNK1306 | DLL entry point function cannot be managed; compile to native |
| Linker Tools Error LNK1309 | type1 module detected; invalid with switch /CLRIMAGETYPE:type2 |
| Linker Tools Error LNK1312 | invalid or corrupt file: unable to import assembly |
| Linker Tools Error LNK1313 | ijw/native module detected; cannot link with pure modules |
| Linker Tools Error LNK1314 | corrupt or invalid COFF symbol table (undefined static or label symbol) |
| Linker Tools Error LNK1318 | Unexpected PDB error; cause 'details' |
| Linker Tools Error LNK1332 | detected <count> Windows Runtime types imported in one module and defined in another module |
| Linker Tools Error LNK1352 | 'section_name_1' and 'section_name_2' cannot be merged into different sections |
| Linker Tools Error LNK1561 | entry point must be defined |
| Linker Tools Error LNK2001 | unresolved external symbol "symbol" |
| Linker Tools Error LNK2004 | gp relative fixup overflow to 'target'; short section 'section' is too large or out of range. |
| Linker Tools Error LNK2005 | symbol already defined in object |
| Linker Tools Error LNK2008 | Fixup target is not aligned 'symbol_name' |
| Linker Tools Error LNK2011 | precompiled object not linked in; image may not run |
| Linker Tools Error LNK2013 | fixup type fixup overflow. Target 'symbol name' is out of range |
| Linker Tools Error LNK2017 | 'symbol' relocation to 'segment' invalid without /LARGEADDRESSAWARE:NO |
| Linker Tools Error LNK2019 | unresolved external symbol 'symbol' referenced in function 'function' |
| Linker Tools Error LNK2020 | unresolved token 'token' |
| Linker Tools Error LNK2022 | metadata operation failed (HRESULT) : error_message |
| Linker Tools Error LNK2023 | bad dll or entry point <dll or entry point> |
| Linker Tools Error LNK2026 | module unsafe for SAFESEH image |
| Linker Tools Error LNK2027 | unresolved module reference 'module' |
| Linker Tools Error LNK2028 | "exported_function" (decorated_name) referenced in function "function_containing_function_call" (decorated_name) |
| Linker Tools Error LNK2031 | unable to generate p/invoke for "function_declaration" decorated_name; calling convention missing in metadata |
| Linker Tools Error LNK2033 | unresolved typeref token (token) for 'type' |
| Linker Tools Error LNK2038 | mismatch detected for 'name': value 'value_1' doesn't match value 'value_2' in filename.obj |
| Linker Tools Error LNK2039 | importing ref class <type> that is defined in another.obj; it should be either imported or defined, but not both |
Linker tools warnings
| Warning | Message |
|---|---|
| Linker Tools Warning LNK4001 | no object files specified; libraries used |
| Linker Tools Warning LNK4002 | symbol defined in object |
| Linker Tools Warning LNK4006 | symbol already defined in object; second definition ignored |
| Linker Tools Warning LNK4010 | invalid subsystem version number number; default subsystem version assumed |
| Linker Tools Warning LNK4014 | cannot find member object "objectname" |
| Linker Tools Warning LNK4020 | a type record in 'filename' is corrupted; some symbols and types may not be accessible from the debugger |
| Linker Tools Warning LNK4022 | cannot find unique match for symbol 'symbol' |
| Linker Tools Warning LNK4039 | section 'name' specified with /SECTION option does not exist |
| Linker Tools Warning LNK4044 | unrecognized option 'option'; ignored |
| Linker Tools Warning LNK4049 | symbol 'symbol' defined in 'filename.obj' is imported |
| Linker Tools Warning LNK4065 | 'function' cannot be ordered; ignored |
| Linker Tools Warning LNK4070 | /OUT:filename directive in .EXP differs from output filename 'filename'; ignoring directive |
| Linker Tools Warning LNK4071 | cannot be incrementally linked on subsequent links |
| Linker Tools Warning LNK4073 | cannot create map for .ilk file; linking nonincrementally |
| Linker Tools Warning LNK4075 | ignoring "option1" due to "option2" specification |
| Linker Tools Warning LNK4076 | invalid incremental status file 'filename'; linking nonincrementally |
| Linker Tools Warning LNK4078 | multiple 'section name' sections found with different attributes |
| Linker Tools Warning LNK4086 | entrypoint 'function' is not __stdcall with 'number' bytes of arguments; image may not run |
| Linker Tools Warning LNK4092 | shared writable section 'section' contains relocations; image may not run correctly |
| Linker Tools Warning LNK4096 | /BASE value "number" is invalid for Windows 95 and Windows 98; image may not run |
| Linker Tools Warning LNK4098 | defaultlib 'library' conflicts with use of other libs; use /NODEFAULTLIB:library |
| Linker Tools Warning LNK4099 | PDB 'filename' was not found with 'object/library' or at 'path'; linking object as if no debug info |
| Linker Tools Warning LNK4102 | export of deleting destructor 'name'; image may not run correctly |
| Linker Tools Warning LNK4104 | export of symbol 'symbol' should be PRIVATE |
| Linker Tools Warning LNK4105 | no argument specified with option 'option'; ignoring option |
| Linker Tools Warning LNK4194 | /DELAYLOAD:dll name ignored |
| Linker Tools Warning LNK4197 | export 'exportname' specified multiple times; using first specification |
| Linker Tools Warning LNK4199 | /DELAYLOAD:dllname ignored; no imports found from dllname |
| Linker Tools Warning LNK4200 | corrupt line number information in object file; ignored |
| Linker Tools Warning LNK4204 | 'filename' is missing debugging information for referencing module; linking object as if no debug info |
| Linker Tools Warning LNK4205 | 'filename' is missing current debugging information for referencing module; linking object as if no debug info |
| Linker Tools Warning LNK4206 | precompiled type information not found; 'filename' not linked or overwritten; linking object as if no debug info |
| Linker Tools Warning LNK4210 | section section exists; there may be unhandled static initializers or terminators |
| Linker Tools Warning LNK4216 | Exported entry point entry |
| Linker Tools Warning LNK4217 | symbol 'symbol' defined in 'filename_1.obj' is imported by 'filename_2.obj' in function 'function' |
| Linker Tools Warning LNK4219 | fixup name fixup overflow. Target 'target symbol name' is out of range, inserting thunk |
| Linker Tools Warning LNK4220 | invalid 'linker option' value 'value'; assumed default |
| Linker Tools Warning LNK4221 | This object file does not define any previously undefined public symbols, so it will not be used by any link operation that consumes this library |
| Linker Tools Warning LNK4222 | exported symbol 'symbol' should not be assigned an ordinal |
| Linker Tools Warning LNK4224 | option is no longer supported; ignored |
| Linker Tools Warning LNK4227 | metadata operation warning (HRESULT) : warning_message |
| Linker Tools Warning LNK4229 | invalid directive /directive found; ignored |
| Linker Tools Warning LNK4237 | /SUBSYSTEM:NATIVE specified when importing from 'dll'; Use /SUBSYSTEM:CONSOLE or /SUBSYSTEM:WINDOWS. |
| Linker Tools Warning LNK4247 | entry point 'decorated_function_name' already has a thread attribute; 'attribute' ignored |
| Linker Tools Warning LNK4248 | unresolved typeref token (token) for 'type'; image may not run |
| Linker Tools Warning LNK4253 | section 'section1' not merged into 'section2'; already merged into 'section3' |
| Linker Tools Warning LNK4254 | section 'section1' (offset) merged into 'section2' (offset) with different attributes |
| Linker Tools Warning LNK4286 | symbol 'symbol' defined in 'filename_1.obj' is imported by 'filename_2.obj' |
| Linker Tools Warning LNK4306 | The auxiliary delayload import address table is not properly aligned with the primary delayload import address table. This may have negative perf impact. |
| Linker Tools Warning LNK4307 | The auxiliary delayload import address table copy is not properly aligned with the auxiliary delayload import address table. This may have negative perf impact. |