zdbdz

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x28 pc=0x7c8f4d]

goroutine 61 [running]:
github.com/decred/dcrwallet/wallet/udb.fetchManagerVersion(0x0, 0x0, 0x0, 0x0, 0x0)
	/home/build/.go/pkg/mod/github.com/decred/dcrwallet/wallet@v1.2.0/udb/addressdb.go:230 +0x2d
github.com/decred/dcrwallet/wallet/udb.upgradeManager(0x0, 0x0, 0xd, 0xc000434200)
	/home/build/.go/pkg/mod/github.com/decred/dcrwallet/wallet@v1.2.0/udb/addressdb.go:1479 +0x64
github.com/decred/dcrwallet/wallet/udb.Migrate.func1(0xf1c740, 0xc000006050, 0xc000121757, 0xc000121790)
	/home/build/.go/pkg/mod/github.com/decred/dcrwallet/wallet@v1.2.0/udb/migration.go:45 +0x197
github.com/decred/dcrwallet/wallet/walletdb.Update(0xf1ae20, 0xc000266000, 0xc0001217a0, 0x0, 0x0)
	/home/build/.go/pkg/mod/github.com/decred/dcrwallet/wallet@v1.2.0/walletdb/interface.go:239 +0xd1
github.com/decred/dcrwallet/wallet/udb.Migrate(0xf1ae20, 0xc000266000, 0x14cfe80, 0x0, 0x0)
	/home/build/.go/pkg/mod/github.com/decred/dcrwallet/wallet@v1.2.0/udb/migration.go:37 +0x64
github.com/decred/dcrwallet/wallet.Open(0xc0001cc820, 0xc0001cc820, 0xc0001219f0, 0xf15c60)
	/home/build/.go/pkg/mod/github.com/decred/dcrwallet/wallet@v1.2.0/wallet.go:4452 +0xfe5
github.com/decred/dcrwallet/loader.(*Loader).OpenExistingWallet(0xc0001e1080, 0xc0004340e8, 0x6, 0x8, 0x0, 0x0, 0x0)
	/home/build/.go/src/github.com/decred/dcrwallet/loader/loader.go:345 +0x675
github.com/decred/dcrwallet/rpc/rpcserver.(*loaderServer).OpenWallet(0x14e4b80, 0xf1a520, 0xc00016e570, 0xc0000662c0, 0x14e4b80, 0x2f, 0x1d)
	/home/build/.go/src/github.com/decred/dcrwallet/rpc/rpcserver/server.go:2408 +0x62
github.com/decred/dcrwallet/rpc/walletrpc._WalletLoaderService_OpenWallet_Handler.func1(0xf1a520, 0xc00016e570, 0xc7e300, 0xc0000662c0, 0x2, 0x2, 0x0, 0xc0002f2700)
	/home/build/.go/pkg/mod/github.com/decred/dcrwallet/rpc/walletrpc@v0.2.0/api.pb.go:11279 +0x8d
main.interceptUnary(0xf1a520, 0xc00016e570, 0xc7e300, 0xc0000662c0, 0xc00043e5a0, 0xc00043e5c0, 0xbe5a80, 0x1503448, 0xcc1d20, 0xc000166100)
	/home/build/.go/src/github.com/decred/dcrwallet/rpcserver.go:238 +0xf8
github.com/decred/dcrwallet/rpc/walletrpc._WalletLoaderService_OpenWallet_Handler(0xc992e0, 0x14e4b80, 0xf1a520, 0xc00016e570, 0xc0002de140, 0xe6e698, 0x0, 0x0, 0xc0004340b0, 0x8)
	/home/build/.go/pkg/mod/github.com/decred/dcrwallet/rpc/walletrpc@v0.2.0/api.pb.go:11281 +0x15f
google.golang.org/grpc.(*Server).processUnaryRPC(0xc00042ad80, 0xf1e840, 0xc000003080, 0xc000166100, 0xc00028aba0, 0x14cf3a8, 0x0, 0x0, 0x0)
	/home/build/.go/pkg/mod/google.golang.org/grpc@v1.17.0/server.go:966 +0x4a9
google.golang.org/grpc.(*Server).handleStream(0xc00042ad80, 0xf1e840, 0xc000003080, 0xc000166100, 0x0)
	/home/build/.go/pkg/mod/google.golang.org/grpc@v1.17.0/server.go:1245 +0xd68
google.golang.org/grpc.(*Server).serveStreams.func1.1(0xc00029a020, 0xc00042ad80, 0xf1e840, 0xc000003080, 0xc000166100)
	/home/build/.go/pkg/mod/google.golang.org/grpc@v1.17.0/server.go:685 +0xa6
created by google.golang.org/grpc.(*Server).serveStreams.func1
	/home/build/.go/pkg/mod/google.golang.org/grpc@v1.17.0/server.go:683 +0xa8