I have problems with importing a package. I want to import the "golang.org/x/tools/cmd/oracle" and the "golang.org/x/tools/oracle" package.
Which is the correct way to import these packages?
This the way I try to import the packages:
package main
import (
"fmt"
"strings"
"os"
"os/exec"
"golang.org/x/tools/oracle"
"golang.org/x/tools/cmd/oracle"
)
The both last imports leads to the following problem:
==================== Starting Go build ====================
Cleared problem markers for ProjektGO.
************ Building Go project: ProjektGO ************
with GOPATH: /home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO
>> Running: /usr/lib/go/bin/go install -v -gcflags "-N -l" ./...
file/main.go:13:2: cannot find package "golang.org/x/tools/cmd/oracle" in any of:
/usr/lib/go/src/golang.org/x/tools/cmd/oracle (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/cmd/oracle (from $GOPATH)
file/main.go:12:2: cannot find package "golang.org/x/tools/oracle" in any of:
/usr/lib/go/src/golang.org/x/tools/oracle (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/oracle (from $GOPATH)
^^^ Terminated, exit code: 1 ^^^
************ Build terminated. ************
Then I tried things like that:
package main
import (
"fmt"
"strings"
"os"
"os/exec"
"../../../../../golang.org/x/tools/cmd/oracle"
"../../../../../golang.org/x/tools/oracle"
)
And the result was this:
==================== Starting Go build ====================
************ Building Go project: ProjektGO ************
with GOPATH: /home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO
>> Running: /usr/lib/go/bin/go install -v -gcflags "-N -l" ./...
can't load package: /home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/file/main.go:11:2: import "../../../../../golang.org/x/tools/cmd/oracle" is a program, not an importable package
../../../../golang.org/x/tools/oracle/describe.go:20:2: cannot find package "golang.org/x/tools/go/ast/astutil" in any of:
/usr/lib/go/src/golang.org/x/tools/go/ast/astutil (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/go/ast/astutil (from $GOPATH)
../../../../golang.org/x/tools/cmd/oracle/main.go:26:2: cannot find package "golang.org/x/tools/go/buildutil" in any of:
/usr/lib/go/src/golang.org/x/tools/go/buildutil (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/go/buildutil (from $GOPATH)
../../../../golang.org/x/tools/oracle/callers.go:11:2: cannot find package "golang.org/x/tools/go/callgraph" in any of:
/usr/lib/go/src/golang.org/x/tools/go/callgraph (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/go/callgraph (from $GOPATH)
../../../../golang.org/x/tools/cmd/oracle/main.go:27:2: cannot find package "golang.org/x/tools/go/loader" in any of:
/usr/lib/go/src/golang.org/x/tools/go/loader (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/go/loader (from $GOPATH)
../../../../golang.org/x/tools/oracle/callees.go:17:2: cannot find package "golang.org/x/tools/go/pointer" in any of:
/usr/lib/go/src/golang.org/x/tools/go/pointer (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/go/pointer (from $GOPATH)
../../../../golang.org/x/tools/oracle/callees.go:18:2: cannot find package "golang.org/x/tools/go/ssa" in any of:
/usr/lib/go/src/golang.org/x/tools/go/ssa (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/go/ssa (from $GOPATH)
../../../../golang.org/x/tools/oracle/callees.go:19:2: cannot find package "golang.org/x/tools/go/ssa/ssautil" in any of:
/usr/lib/go/src/golang.org/x/tools/go/ssa/ssautil (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/go/ssa/ssautil (from $GOPATH)
../../../../golang.org/x/tools/oracle/describe.go:22:2: cannot find package "golang.org/x/tools/go/types/typeutil" in any of:
/usr/lib/go/src/golang.org/x/tools/go/types/typeutil (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/go/types/typeutil (from $GOPATH)
../../../../golang.org/x/tools/cmd/oracle/main.go:28:2: cannot find package "golang.org/x/tools/oracle" in any of:
/usr/lib/go/src/golang.org/x/tools/oracle (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/oracle (from $GOPATH)
../../../../golang.org/x/tools/oracle/callees.go:20:2: cannot find package "golang.org/x/tools/oracle/serial" in any of:
/usr/lib/go/src/golang.org/x/tools/oracle/serial (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/oracle/serial (from $GOPATH)
../../../../golang.org/x/tools/oracle/implements.go:21:2: cannot find package "golang.org/x/tools/refactor/importgraph" in any of:
/usr/lib/go/src/golang.org/x/tools/refactor/importgraph (from $GOROOT)
/home/haapoo/go/src/github.com/ProjektarbeitGo/ProjektGO/src/golang.org/x/tools/refactor/importgraph (from $GOPATH)
^^^ Terminated, exit code: 1 ^^^
************ Build terminated. ************
My GOROOT is /usr/lib/go and my GOPATH is /home/haapoo/go .
I know the question about gopath and goroot comes often but maybe anyone has an idea.
PS: I use goclipse
Greetings
haapoo
Have you run go get golang.org/x/tools/oracle and go get golang.org/x/tools/cmd/oracle ? This should be run after $GOPATH is properly set.
Never ever set GOROOT. (Unless you know what you are doing). Setting it is not needed.
As you cannot import golang.org/x/tools/cmd/oracle as this is a main package. At least you cannot do this the easy way and you should not anyway (except if you want to test the imported main package).
Importing is not magic, you'll have to download the package before using it. Use go get as others have mentioned.
Build on the command line to be sure what you are doing and how you are doing it (IDEs tend to blur things here).
If you need to import different packages of the same name in Golang, this is the way(just name it):
import (
"text/template"
ht "html/template"
)
but in case of "golang.org/x/tools/cmd/oracle"
it is not a package , it has just main.go and you need to build/install it. it is a command line tool:
Run 'oracle -help' for more information.
Go source code oracle.
Usage: oracle [<flag> ...] <mode> <args> ...
The -format flag controls the output format:
plain an editor-friendly format in which every line of output
is of the form "pos: text", where pos is "-" if unknown.
json structured data in JSON syntax.
xml structured data in XML syntax.
oracle is a source analysis command line tool, you can't import it. Use the following command to get it:
go get golang.org/x/tools/cmd/oracle
This will create an executable named oracle in your $GOPATH/bin directory.
Visit http://golang.org/s/oracle-user-manual for the complete oracle documentation.
Related
I have been trying to build a module on Go v1.13 with dependencies on github.com/aws/aws-lambda-go and github.com/aws/aws-sdk-go which fail on the two imports:
"github.com/aws/aws-sdk-go/aws/service/s3"
"github.com/aws/aws-sdk-go/aws/service/s3/s3manager"
The stderr is as follows for GOOS=linux GOARCH=amd64 go build -o dist/api ./api where the api directory contains my module definition:
api/main.go:11:2: cannot find package "github.com/aws/aws-sdk-go/aws/service/s3" in any of:
/usr/local/go/src/github.com/aws/aws-sdk-go/aws/service/s3 (from $GOROOT)
/u/go/src/github.com/aws/aws-sdk-go/aws/service/s3 (from $GOPATH)
api/main.go:12:2: cannot find package "github.com/aws/aws-sdk-go/aws/service/s3/s3manager" in any of:
/usr/local/go/src/github.com/aws/aws-sdk-go/aws/service/s3/s3manager (from $GOROOT)
/u/go/src/github.com/aws/aws-sdk-go/aws/service/s3/s3manager (from $GOPATH)
Honestly, I have no clue why this is happening and any inputs would be appreciated.
Already tried using go get to ensure that the dependencies have been pulled:
$ go get github.com/aws/aws-sdk-go
and the requested import paths are present under $GOPATH/src/github.com/aws/aws-sdk/go/aws/service/s3 and $GOPATH/src/github.com/aws/aws-sdk/go/aws/service/s3/s3manager
Also, tried clearing the cache using go clean --cache --modcache whilst removing previously pulled modules.
On closer inspection, something that I completely overlooked, the import path is /u/go/src/github.com/aws/aws-sdk-go/aws/service/s3 instead of /u/go/src/github.com/aws/aws-sdk-go/service/s3 with the former having an additional aws subpath inside aws-sdk-go.
Just realized the copy/paste error I had made in the code.
import (
"github.com/aws/aws-sdk-go/aws/service/s3"
"github.com/aws/aws-sdk-go/aws/service/s3/s3manager"
)
instead of
import (
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/service/s3/s3manager"
)
my os is ubuntu18.04.
my go compiler is gccgo.
GOROOT is /usr/local/go
it is report as:
package testmain
imports runtime/race: cannot find package "runtime/race" in any of:
/usr/local/go/src/runtime/race (from $GOROOT)
/home/lzx/tiny_distributed_system/src/runtime/race (from $GOPATH)
i have downloaded a project from github for some testing. the code is in go language. when i edited the code and run , many errors occoured.
I have tried to run project using D:\go>go run demo command.
how should i run the project?
here are the errors:
D:\go>go run hardentools-master
bin\src\hardentools-master\powershell.go:20:2: cannot find package "errors" in any of:
D:\go\bin\src\errors (from $GOROOT)
C:\Users\admin\go\src\errors (from $GOPATH)
bin\src\hardentools-master\gui.go:20:2: cannot find package "flag" in any of:
D:\go\bin\src\flag (from $GOROOT)
C:\Users\admin\go\src\flag (from $GOPATH)
bin\src\hardentools-master\adobe.go:20:2: cannot find package "fmt" in any of:
D:\go\bin\src\fmt (from $GOROOT)
C:\Users\admin\go\src\fmt (from $GOPATH)
bin\src\hardentools-master\gui.go:26:2: cannot find package "github.com/lxn/walk" in any of:
D:\go\bin\src\github.com\lxn\walk (from $GOROOT)
C:\Users\admin\go\src\github.com\lxn\walk (from $GOPATH)
bin\src\hardentools-master\gui.go:27:2: cannot find package "github.com/lxn/walk/declarative" in any of:
D:\go\bin\src\github.com\lxn\walk\declarative (from $GOROOT)
C:\Users\admin\go\src\github.com\lxn\walk\declarative (from $GOPATH)
bin\src\hardentools-master\adobe.go:22:2: cannot find package "golang.org/x/sys/windows/registry" in any of:
D:\go\bin\src\golang.org\x\sys\windows\registry (from $GOROOT)
C:\Users\admin\go\src\golang.org\x\sys\windows\registry (from $GOPATH)
bin\src\hardentools-master\main.go:73:2: cannot find package "io" in any of:
D:\go\bin\src\io (from $GOROOT)
C:\Users\admin\go\src\io (from $GOPATH)
bin\src\hardentools-master\gui.go:22:2: cannot find package "io/ioutil" in any of:
D:\go\bin\src\io\ioutil (from $GOROOT)
C:\Users\admin\go\src\io\ioutil (from $GOPATH)
bin\src\hardentools-master\main.go:74:2: cannot find package "log" in any of:
D:\go\bin\src\log (from $GOROOT)
C:\Users\admin\go\src\log (from $GOPATH)
bin\src\hardentools-master\gui.go:23:2: cannot find package "os" in any of:
D:\go\bin\src\os (from $GOROOT)
C:\Users\admin\go\src\os (from $GOPATH)
You can check the release page, you have an executable ready to use : https://github.com/securitywithoutborders/hardentools/releases
I have my GOPATH and GOROOT set, currently trying to use a package located in the vendor folder, while doing go run in my windows I get
C:\resume>go run docs/generator.go
docs\generator.go:13:2: cannot find package "github.com/tidwall/gjson" in any
of:
C:\Go\src\github.com\tidwall\gjson (from $GOROOT)
C:\resume\src\github.com\tidwall\gjson (from $GOPATH)
My GOROOT=C:\Go, GOPATH=C:\resume and PATH=C:\Go\bin
My import looks like this below:
import (
"testing"
"github.com/stretchr/testify/assert"
)
when I try try running 'go test' I get the error message:
cannot find package "github.com/stretchr/testify/assert" in any of:
/Users/[username]/go/src/github.com/[group_name]/[project_name]/vendor/github.com/stretchr/testify/assert (vendor tree)
/usr/local/go/src/github.com/stretchr/testify/assert (from $GOROOT)
/Users/[username]/go/src/github.com/stretchr/testify/assert (from $GOPATH)
FAIL github.com/[group_name]/[project_name]/lib/briteverify [setup failed]
So it appears the last line is the issue, where it says in .../lib/briteverify it cannot find github.com/stretchr/testify/assert. However, I have this as an import so I don't know why it would throw this error. Any thoughts?
Moving the answer here for others in the future.
You need to both import the package and run go get github.com/package/path to install the package.