... is declared in another module and needs to be imported"

[furesoft]

Hi,

I am writing a compiler with mono.cecil and for typeresolving I have a cache pointed to the typedefinitions. But when I want to write the assembly to a file I get an error: "Member 'System.String' is declared in another module and needs to be imported" for every type I reference. But this erro only occurs if I want to emit a call, in structs, parameters, variables, it works fine.

[ltrzesniewski]

Hi,

First, let's get that out of the way: I suppose you've read the importing doc?

Here are some possible issues off the top of my head:

• Is your cache lifetime tied to the emitted module, or is it reused across several modules? Importing a type adds needed info to the metadata (most notably its assembly reference), which means you need to import each type to every module separately.

• Do you use/cache the type returned by ImportReference? If you use the TypeReference that you pass to ImportReference, that won't work.

• You said your cache points to type definitions, is that a mistake? You don't have the definitions of external types, only references to them.