What version of Go are you using (go version)?

$ go version
go version go1.16.2 darwin/amd64

What operating system and processor architecture are you using (go env)?

$ go env
GO111MODULE="on"
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/I545056/Library/Caches/go-build"
GOENV="/Users/I545056/Library/Application Support/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="/Users/I545056/Go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/I545056/Go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/Cellar/go/1.16.2/libexec"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/Cellar/go/1.16.2/libexec/pkg/tool/darwin_amd64"
GOVCS=""
GOVERSION="go1.16.2"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="/dev/null"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -arch x86_64 -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/pb/mf__09g557z52fz0b_fxz1kh0000gn/T/go-build3299511577=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

I am currently developing a library that is used by another CLI application. For this, we are using Go as language and VSCode as the main IDE.
Since the latest update I am getting an error, and thus autocompletion does not work anymore. Furthermore, saving takes several seconds.

The project is located in the following directory on my Mac: ~/go/src/github.com/kyma-project/hydroform

What did you expect to see?

No Error, autocompletion, and fast saving.

What did you see instead?

The following Error.

Error loading workspace: You are outside of a module and outside of $GOPATH/src. If you are using modules, please open your editor to a directory in your module. If you believe this warning is incorrect, please file an issue: https://github.com/golang/go/issues/new.